--- tool: Crawlinx SEO audit source: https://crawlinx.com domain: oudemuziek.nl report_url: "https://crawlinx.com/audit/oudemuziek.nl" crawl_id: 20260722T105843-4238a39c health_score: 65 generated_at: 2026-08-26T04:09:57Z total_pages: 50 html_pages: 50 indexable_pages: 50 errors: 0 warnings: 121 notices: 330 --- # SEO audit: oudemuziek.nl **Health score: 65/100** — needs attention > Audited by [Crawlinx](https://crawlinx.com) — the free technical-SEO crawler. Full report: https://crawlinx.com/audit/oudemuziek.nl ## Overview | Metric | Value | | --- | --- | | Pages crawled | 50 | | HTML pages | 50 | | Indexable | 50 | | Non-indexable | 0 | | Orphan pages | 0 | | Broken internal links | 0 | | Avg response time | 941 ms | | Errors / Warnings / Notices | 0 / 121 / 330 | | Status codes | 50×200 | ## Categories | Category | Score | Errors | Warnings | Notices | | --- | ---: | ---: | ---: | ---: | | Agent Readiness | 70 | 0 | 50 | 33 | | Meta Description | 78 | 0 | 37 | 5 | | Performance | 93 | 0 | 11 | 83 | | Titles | 95 | 0 | 9 | 0 | | Duplicate | 95 | 0 | 8 | 0 | | Headings | 97 | 0 | 5 | 0 | | AI Content | 99 | 0 | 1 | 0 | | Canonical | 100 | 0 | 0 | 2 | | Images | 100 | 0 | 0 | 3 | | Links | 100 | 0 | 0 | 50 | | Security | 100 | 0 | 0 | 50 | | Social | 100 | 0 | 0 | 100 | | Structured Data | 100 | 0 | 0 | 2 | | URL | 100 | 0 | 0 | 2 | ## Issues ### Warnings (121) #### Control has no accessible name - Rule: `agent.control_no_name` · Category: Agent Readiness · Occurrences: 50 - [https://oudemuziek.nl/](https://oudemuziek.nl/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/agenda/](https://oudemuziek.nl/agenda/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/](https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/app/](https://oudemuziek.nl/app/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/ayrton/](https://oudemuziek.nl/ayrton/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/barok/](https://oudemuziek.nl/barok/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/bedankt-voor-uw-inschrijving/](https://oudemuziek.nl/bedankt-voor-uw-inschrijving/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/bedankt-voor-uw-wijziging/](https://oudemuziek.nl/bedankt-voor-uw-wijziging/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/beiaardfestival/](https://oudemuziek.nl/beiaardfestival/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/breakfastshow/](https://oudemuziek.nl/breakfastshow/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/byrd/](https://oudemuziek.nl/byrd/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/castelkorn/](https://oudemuziek.nl/castelkorn/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/concertwijzer/](https://oudemuziek.nl/concertwijzer/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/early-music-television/](https://oudemuziek.nl/early-music-television/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/expo/](https://oudemuziek.nl/expo/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/festival/](https://oudemuziek.nl/festival/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/festival/archief/fomu25/concert-camper/concert-camper-schema/](https://oudemuziek.nl/festival/archief/fomu25/concert-camper/concert-camper-schema/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/festival/concours/publieksprijs/](https://oudemuziek.nl/festival/concours/publieksprijs/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/festival/festival-2026-giving-voice/](https://oudemuziek.nl/festival/festival-2026-giving-voice/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/](https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/fomu26/](https://oudemuziek.nl/fomu26/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/heidweiller/](https://oudemuziek.nl/heidweiller/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/hifi/](https://oudemuziek.nl/hifi/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/klavecimbel/](https://oudemuziek.nl/klavecimbel/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/latecollection/](https://oudemuziek.nl/latecollection/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/lesalon/](https://oudemuziek.nl/lesalon/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/locaties/s-hertogenbosch-diverse-locaties/](https://oudemuziek.nl/locaties/s-hertogenbosch-diverse-locaties/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/middeleeuwen/](https://oudemuziek.nl/middeleeuwen/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/not-found/](https://oudemuziek.nl/not-found/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/notredame/](https://oudemuziek.nl/notredame/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/over-ons/](https://oudemuziek.nl/over-ons/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/over-ons/contact/](https://oudemuziek.nl/over-ons/contact/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/over-ons/medewerkers/vacatures/](https://oudemuziek.nl/over-ons/medewerkers/vacatures/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/plan-uw-bezoek/](https://oudemuziek.nl/plan-uw-bezoek/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/renaissance/](https://oudemuziek.nl/renaissance/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/steun-ons/](https://oudemuziek.nl/steun-ons/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/steun-ons/particulieren/](https://oudemuziek.nl/steun-ons/particulieren/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/steun-ons/particulieren/word-vriend/](https://oudemuziek.nl/steun-ons/particulieren/word-vriend/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/tournees/](https://oudemuziek.nl/tournees/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/](https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/tournees/tournees-20262027/](https://oudemuziek.nl/tournees/tournees-20262027/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/tournees/tournees-20262027/t2627-tenebrae-choir/](https://oudemuziek.nl/tournees/tournees-20262027/t2627-tenebrae-choir/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/ukg/](https://oudemuziek.nl/ukg/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/voor-musici/](https://oudemuziek.nl/voor-musici/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/voor-musici/festival/](https://oudemuziek.nl/voor-musici/festival/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/voor-musici/fringe/fringe-reglement/](https://oudemuziek.nl/voor-musici/fringe/fringe-reglement/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/vriendenaanbiedingen/](https://oudemuziek.nl/vriendenaanbiedingen/) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://oudemuziek.nl/zoeken/](https://oudemuziek.nl/zoeken/) — 2 button/link(s) with no text or aria-label — an agent can't target them #### Unfilled template or prompt-leak text - Rule: `ai.prompt_leak` · Category: AI Content · Occurrences: 1 - [https://oudemuziek.nl/festival/archief/fomu25/concert-camper/concert-camper-schema/](https://oudemuziek.nl/festival/archief/fomu25/concert-camper/concert-camper-schema/) — The page contains unfilled template or prompt-echo text — e.g. "{{numberOfDays}}". This usually means a generation template was published without being completed or cleaned up. Fill in or remove the placeholder so readers and crawlers don't see the scaffolding. #### Near-duplicate page content - Rule: `duplicate.near` · Category: Duplicate · Occurrences: 8 - [https://oudemuziek.nl/bedankt-voor-uw-inschrijving/](https://oudemuziek.nl/bedankt-voor-uw-inschrijving/) — near-duplicate of 5 page(s): https://oudemuziek.nl/over-ons/medewerkers/vacatures/, https://oudemuziek.nl/festival/concours/publieksprijs/, https://oudemuziek.nl/plan-uw-bezoek/ - [https://oudemuziek.nl/concertwijzer/](https://oudemuziek.nl/concertwijzer/) — near-duplicate of 5 page(s): https://oudemuziek.nl/over-ons/medewerkers/vacatures/, https://oudemuziek.nl/festival/concours/publieksprijs/, https://oudemuziek.nl/plan-uw-bezoek/ - [https://oudemuziek.nl/festival/concours/publieksprijs/](https://oudemuziek.nl/festival/concours/publieksprijs/) — near-duplicate of 5 page(s): https://oudemuziek.nl/over-ons/medewerkers/vacatures/, https://oudemuziek.nl/plan-uw-bezoek/, https://oudemuziek.nl/zoeken/ - [https://oudemuziek.nl/over-ons/medewerkers/vacatures/](https://oudemuziek.nl/over-ons/medewerkers/vacatures/) — near-duplicate of 5 page(s): https://oudemuziek.nl/festival/concours/publieksprijs/, https://oudemuziek.nl/plan-uw-bezoek/, https://oudemuziek.nl/zoeken/ - [https://oudemuziek.nl/plan-uw-bezoek/](https://oudemuziek.nl/plan-uw-bezoek/) — near-duplicate of 5 page(s): https://oudemuziek.nl/over-ons/medewerkers/vacatures/, https://oudemuziek.nl/festival/concours/publieksprijs/, https://oudemuziek.nl/zoeken/ - [https://oudemuziek.nl/steun-ons/](https://oudemuziek.nl/steun-ons/) — near-duplicate of 1 page(s): https://oudemuziek.nl/steun-ons/particulieren/ - [https://oudemuziek.nl/steun-ons/particulieren/](https://oudemuziek.nl/steun-ons/particulieren/) — near-duplicate of 1 page(s): https://oudemuziek.nl/steun-ons/ - [https://oudemuziek.nl/zoeken/](https://oudemuziek.nl/zoeken/) — near-duplicate of 5 page(s): https://oudemuziek.nl/over-ons/medewerkers/vacatures/, https://oudemuziek.nl/festival/concours/publieksprijs/, https://oudemuziek.nl/plan-uw-bezoek/ #### Missing

- Rule: `h1.missing` · Category: Headings · Occurrences: 5 - [https://oudemuziek.nl/app/](https://oudemuziek.nl/app/) - [https://oudemuziek.nl/early-music-television/](https://oudemuziek.nl/early-music-television/) - [https://oudemuziek.nl/festival/archief/fomu25/concert-camper/concert-camper-schema/](https://oudemuziek.nl/festival/archief/fomu25/concert-camper/concert-camper-schema/) - [https://oudemuziek.nl/over-ons/contact/](https://oudemuziek.nl/over-ons/contact/) - [https://oudemuziek.nl/voor-musici/festival/](https://oudemuziek.nl/voor-musici/festival/) #### Hero/LCP image is lazy-loaded (loading=lazy delays LCP) - Rule: `images.no_lazy_lcp_candidate` · Category: Performance · Occurrences: 11 - [https://oudemuziek.nl/app/](https://oudemuziek.nl/app/) — the likely hero/LCP image (1.png) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead. - [https://oudemuziek.nl/concertwijzer/](https://oudemuziek.nl/concertwijzer/) — the likely hero/LCP image (26-aug-1100-daria-spiridonova-marco-borggreve.jpeg) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead. - [https://oudemuziek.nl/early-music-television/](https://oudemuziek.nl/early-music-television/) — the likely hero/LCP image (fom24-_hr_-foppe-schut-118900.jpg) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead. - [https://oudemuziek.nl/fomu26/](https://oudemuziek.nl/fomu26/) — the likely hero/LCP image (1-sep-2000-98-art-house-nicola-milatovic.jpg) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead. - [https://oudemuziek.nl/plan-uw-bezoek/](https://oudemuziek.nl/plan-uw-bezoek/) — the likely hero/LCP image (fomu22-hr-foppe-schut-_fs_4684.jpg) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead. - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/) — the likely hero/LCP image (bestel-kaarten-stap-1-nl.png) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead. - [https://oudemuziek.nl/steun-ons/](https://oudemuziek.nl/steun-ons/) — the likely hero/LCP image (word-vriend.jpg) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead. - [https://oudemuziek.nl/steun-ons/particulieren/](https://oudemuziek.nl/steun-ons/particulieren/) — the likely hero/LCP image (word-vriend.jpg) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead. - [https://oudemuziek.nl/steun-ons/particulieren/word-vriend/](https://oudemuziek.nl/steun-ons/particulieren/word-vriend/) — the likely hero/LCP image (6k7a1958.jpg) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead. - [https://oudemuziek.nl/voor-musici/](https://oudemuziek.nl/voor-musici/) — the likely hero/LCP image (fom.jpg) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead. - [https://oudemuziek.nl/vriendenaanbiedingen/](https://oudemuziek.nl/vriendenaanbiedingen/) — the likely hero/LCP image (1-bomba-flamenca.png) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead. #### Missing meta description - Rule: `meta_desc.missing` · Category: Meta Description · Occurrences: 37 - [https://oudemuziek.nl/app/](https://oudemuziek.nl/app/) - [https://oudemuziek.nl/ayrton/](https://oudemuziek.nl/ayrton/) - [https://oudemuziek.nl/bedankt-voor-uw-inschrijving/](https://oudemuziek.nl/bedankt-voor-uw-inschrijving/) - [https://oudemuziek.nl/bedankt-voor-uw-wijziging/](https://oudemuziek.nl/bedankt-voor-uw-wijziging/) - [https://oudemuziek.nl/beiaardfestival/](https://oudemuziek.nl/beiaardfestival/) - [https://oudemuziek.nl/breakfastshow/](https://oudemuziek.nl/breakfastshow/) - [https://oudemuziek.nl/byrd/](https://oudemuziek.nl/byrd/) - [https://oudemuziek.nl/castelkorn/](https://oudemuziek.nl/castelkorn/) - [https://oudemuziek.nl/concertwijzer/](https://oudemuziek.nl/concertwijzer/) - [https://oudemuziek.nl/expo/](https://oudemuziek.nl/expo/) - [https://oudemuziek.nl/festival/archief/fomu25/concert-camper/concert-camper-schema/](https://oudemuziek.nl/festival/archief/fomu25/concert-camper/concert-camper-schema/) - [https://oudemuziek.nl/festival/concours/publieksprijs/](https://oudemuziek.nl/festival/concours/publieksprijs/) - [https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/](https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/) - [https://oudemuziek.nl/fomu26/](https://oudemuziek.nl/fomu26/) - [https://oudemuziek.nl/heidweiller/](https://oudemuziek.nl/heidweiller/) - [https://oudemuziek.nl/hifi/](https://oudemuziek.nl/hifi/) - [https://oudemuziek.nl/klavecimbel/](https://oudemuziek.nl/klavecimbel/) - [https://oudemuziek.nl/latecollection/](https://oudemuziek.nl/latecollection/) - [https://oudemuziek.nl/lesalon/](https://oudemuziek.nl/lesalon/) - [https://oudemuziek.nl/notredame/](https://oudemuziek.nl/notredame/) - [https://oudemuziek.nl/over-ons/](https://oudemuziek.nl/over-ons/) - [https://oudemuziek.nl/over-ons/contact/](https://oudemuziek.nl/over-ons/contact/) - [https://oudemuziek.nl/over-ons/medewerkers/vacatures/](https://oudemuziek.nl/over-ons/medewerkers/vacatures/) - [https://oudemuziek.nl/plan-uw-bezoek/](https://oudemuziek.nl/plan-uw-bezoek/) - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/) - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/) - [https://oudemuziek.nl/steun-ons/](https://oudemuziek.nl/steun-ons/) - [https://oudemuziek.nl/steun-ons/particulieren/](https://oudemuziek.nl/steun-ons/particulieren/) - [https://oudemuziek.nl/steun-ons/particulieren/word-vriend/](https://oudemuziek.nl/steun-ons/particulieren/word-vriend/) - [https://oudemuziek.nl/tournees/](https://oudemuziek.nl/tournees/) - [https://oudemuziek.nl/tournees/tournees-20262027/](https://oudemuziek.nl/tournees/tournees-20262027/) - [https://oudemuziek.nl/ukg/](https://oudemuziek.nl/ukg/) - [https://oudemuziek.nl/voor-musici/](https://oudemuziek.nl/voor-musici/) - [https://oudemuziek.nl/voor-musici/festival/](https://oudemuziek.nl/voor-musici/festival/) - [https://oudemuziek.nl/voor-musici/fringe/fringe-reglement/](https://oudemuziek.nl/voor-musici/fringe/fringe-reglement/) - [https://oudemuziek.nl/vriendenaanbiedingen/](https://oudemuziek.nl/vriendenaanbiedingen/) - [https://oudemuziek.nl/zoeken/](https://oudemuziek.nl/zoeken/) #### Title likely truncated in SERP (too wide) - Rule: `title.too_long` · Category: Titles · Occurrences: 9 - [https://oudemuziek.nl/agenda/](https://oudemuziek.nl/agenda/) — 75 chars, ~590px (limit ~580px) - [https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/](https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/) — 99 chars, ~772px (limit ~580px) - [https://oudemuziek.nl/plan-uw-bezoek/](https://oudemuziek.nl/plan-uw-bezoek/) — 76 chars, ~597px (limit ~580px) - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/) — 94 chars, ~730px (limit ~580px) - [https://oudemuziek.nl/steun-ons/particulieren/](https://oudemuziek.nl/steun-ons/particulieren/) — 83 chars, ~631px (limit ~580px) - [https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/](https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/) — 101 chars, ~797px (limit ~580px) - [https://oudemuziek.nl/tournees/tournees-20262027/t2627-tenebrae-choir/](https://oudemuziek.nl/tournees/tournees-20262027/t2627-tenebrae-choir/) — 87 chars, ~696px (limit ~580px) - [https://oudemuziek.nl/voor-musici/fringe/fringe-reglement/](https://oudemuziek.nl/voor-musici/fringe/fringe-reglement/) — 78 chars, ~605px (limit ~580px) - [https://oudemuziek.nl/vriendenaanbiedingen/](https://oudemuziek.nl/vriendenaanbiedingen/) — 82 chars, ~642px (limit ~580px) ### Notices (330) #### Heading levels skip a level - Rule: `agent.heading_skip` · Category: Agent Readiness · Occurrences: 32 - [https://oudemuziek.nl/](https://oudemuziek.nl/) — h4 follows h2 — skips h3 - [https://oudemuziek.nl/agenda/](https://oudemuziek.nl/agenda/) — h3 follows h1 — skips h2 - [https://oudemuziek.nl/app/](https://oudemuziek.nl/app/) — h4 follows h2 — skips h3 - [https://oudemuziek.nl/barok/](https://oudemuziek.nl/barok/) — h4 follows h2 — skips h3 - [https://oudemuziek.nl/bedankt-voor-uw-inschrijving/](https://oudemuziek.nl/bedankt-voor-uw-inschrijving/) — h4 follows h1 — skips h2 - [https://oudemuziek.nl/bedankt-voor-uw-wijziging/](https://oudemuziek.nl/bedankt-voor-uw-wijziging/) — h4 follows h1 — skips h2 - [https://oudemuziek.nl/breakfastshow/](https://oudemuziek.nl/breakfastshow/) — h3 follows h1 — skips h2 - [https://oudemuziek.nl/early-music-television/](https://oudemuziek.nl/early-music-television/) — h5 follows h2 — skips h3 - [https://oudemuziek.nl/festival/](https://oudemuziek.nl/festival/) — h4 follows h2 — skips h3 - [https://oudemuziek.nl/festival/concours/publieksprijs/](https://oudemuziek.nl/festival/concours/publieksprijs/) — h4 follows h1 — skips h2 - [https://oudemuziek.nl/festival/festival-2026-giving-voice/](https://oudemuziek.nl/festival/festival-2026-giving-voice/) — h4 follows h2 — skips h3 - [https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/](https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/) — h4 follows h1 — skips h2 - [https://oudemuziek.nl/middeleeuwen/](https://oudemuziek.nl/middeleeuwen/) — h4 follows h2 — skips h3 - [https://oudemuziek.nl/not-found/](https://oudemuziek.nl/not-found/) — h4 follows h1 — skips h2 - [https://oudemuziek.nl/over-ons/](https://oudemuziek.nl/over-ons/) — h4 follows h2 — skips h3 - [https://oudemuziek.nl/over-ons/contact/](https://oudemuziek.nl/over-ons/contact/) — h4 follows h2 — skips h3 - [https://oudemuziek.nl/over-ons/medewerkers/vacatures/](https://oudemuziek.nl/over-ons/medewerkers/vacatures/) — h4 follows h2 — skips h3 - [https://oudemuziek.nl/plan-uw-bezoek/](https://oudemuziek.nl/plan-uw-bezoek/) — h3 follows h1 — skips h2 - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/) — h4 follows h2 — skips h3 - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/) — h4 follows h1 — skips h2 - [https://oudemuziek.nl/renaissance/](https://oudemuziek.nl/renaissance/) — h4 follows h2 — skips h3 - [https://oudemuziek.nl/steun-ons/](https://oudemuziek.nl/steun-ons/) — h3 follows h1 — skips h2 - [https://oudemuziek.nl/steun-ons/particulieren/](https://oudemuziek.nl/steun-ons/particulieren/) — h3 follows h1 — skips h2 - [https://oudemuziek.nl/steun-ons/particulieren/word-vriend/](https://oudemuziek.nl/steun-ons/particulieren/word-vriend/) — h3 follows h1 — skips h2 - [https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/](https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/) — h4 follows h2 — skips h3 - [https://oudemuziek.nl/tournees/tournees-20262027/](https://oudemuziek.nl/tournees/tournees-20262027/) — h4 follows h2 — skips h3 - [https://oudemuziek.nl/tournees/tournees-20262027/t2627-tenebrae-choir/](https://oudemuziek.nl/tournees/tournees-20262027/t2627-tenebrae-choir/) — h4 follows h2 — skips h3 - [https://oudemuziek.nl/ukg/](https://oudemuziek.nl/ukg/) — h3 follows h1 — skips h2 - [https://oudemuziek.nl/voor-musici/festival/](https://oudemuziek.nl/voor-musici/festival/) — h4 follows h2 — skips h3 - [https://oudemuziek.nl/voor-musici/fringe/fringe-reglement/](https://oudemuziek.nl/voor-musici/fringe/fringe-reglement/) — h4 follows h1 — skips h2 - [https://oudemuziek.nl/vriendenaanbiedingen/](https://oudemuziek.nl/vriendenaanbiedingen/) — h4 follows h2 — skips h3 - [https://oudemuziek.nl/zoeken/](https://oudemuziek.nl/zoeken/) — h4 follows h1 — skips h2 #### No llms.txt for AI agents - Rule: `agent.llms_txt_missing` · Category: Agent Readiness · Occurrences: 1 - [https://oudemuziek.nl/](https://oudemuziek.nl/) — no llms.txt found at the site root — add one so AI agents get a curated site summary #### Canonical points to a different URL - Rule: `canonical.non_self` · Category: Canonical · Occurrences: 2 - [https://oudemuziek.nl/](https://oudemuziek.nl/) — canonical=https://oudemuziek.nl/home/ - [https://oudemuziek.nl/middeleeuwen/](https://oudemuziek.nl/middeleeuwen/) — canonical=https://emtv.online/en/catalogue-all/fomu-2026-livestreams/202604-gli-angeli-geneve-ich-habe-genug-bach-voor-bass/ #### Image alt text is very long (possible keyword stuffing) - Rule: `images.alt_too_long` · Category: Images · Occurrences: 3 - [https://oudemuziek.nl/](https://oudemuziek.nl/) — 7 image(s) with alt text over 100 chars — shorten it to a concise description - [https://oudemuziek.nl/festival/](https://oudemuziek.nl/festival/) — 6 image(s) with alt text over 100 chars — shorten it to a concise description - [https://oudemuziek.nl/festival/festival-2026-giving-voice/](https://oudemuziek.nl/festival/festival-2026-giving-voice/) — 6 image(s) with alt text over 100 chars — shorten it to a concise description #### Likely hero image lacks fetchpriority=high - Rule: `images.hero_no_fetchpriority` · Category: Performance · Occurrences: 25 - [https://oudemuziek.nl/](https://oudemuziek.nl/) — the likely hero/LCP image (plafond_achtergrond_def_2-2.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/](https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/) — the likely hero/LCP image (reinoud-van-mechelen-c-senne-van-der-ven_p-22.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/ayrton/](https://oudemuziek.nl/ayrton/) — the likely hero/LCP image (30-patrick-ayrton_wall.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/barok/](https://oudemuziek.nl/barok/) — the likely hero/LCP image (fomu25-foppe-schut-_socials_fs12293.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/beiaardfestival/](https://oudemuziek.nl/beiaardfestival/) — the likely hero/LCP image (36-fomu25-_hr_-foppe-schut-_fs13405.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/breakfastshow/](https://oudemuziek.nl/breakfastshow/) — the likely hero/LCP image (40-early-music-breakfast-show-0029_mariekewijntjes.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/byrd/](https://oudemuziek.nl/byrd/) — the likely hero/LCP image (16-william_byrd_-1543-1623.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/castelkorn/](https://oudemuziek.nl/castelkorn/) — the likely hero/LCP image (28-aug-26-castelkorn-2.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/expo/](https://oudemuziek.nl/expo/) — the likely hero/LCP image (042-tentoonstelling.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/festival/](https://oudemuziek.nl/festival/) — the likely hero/LCP image (fom24-foppe-schut-_lowres_fs24_117975.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/festival/festival-2026-giving-voice/](https://oudemuziek.nl/festival/festival-2026-giving-voice/) — the likely hero/LCP image (fom24-foppe-schut-_lowres_fs24_117975.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/heidweiller/](https://oudemuziek.nl/heidweiller/) — the likely hero/LCP image (32-co-curator-sjoerdderine.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/hifi/](https://oudemuziek.nl/hifi/) — the likely hero/LCP image (034-hifi-sessions-7912_mariekewijntjes.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/klavecimbel/](https://oudemuziek.nl/klavecimbel/) — the likely hero/LCP image (boccalari-1699-sirene-poten.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/latecollection/](https://oudemuziek.nl/latecollection/) — the likely hero/LCP image (24-late-collection-marieke.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/lesalon/](https://oudemuziek.nl/lesalon/) — the likely hero/LCP image (kbw2015-47-of-53.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/locaties/s-hertogenbosch-diverse-locaties/](https://oudemuziek.nl/locaties/s-hertogenbosch-diverse-locaties/) — the likely hero/LCP image (de-toonzaal.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/middeleeuwen/](https://oudemuziek.nl/middeleeuwen/) — the likely hero/LCP image (fom24-foppe-schut-_lowres_fs24_117485.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/notredame/](https://oudemuziek.nl/notredame/) — the likely hero/LCP image (14-notre-dame-img_8697-xavier-vandamme.jpeg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/renaissance/](https://oudemuziek.nl/renaissance/) — the likely hero/LCP image (fomu25-foppe-schut-_lowres_fs134741.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/tournees/](https://oudemuziek.nl/tournees/) — the likely hero/LCP image (fom24-foppe-schut-_lowres_fs24_117526.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/](https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/) — the likely hero/LCP image (cappella-pratensis-sollazzo-ensemble.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/tournees/tournees-20262027/](https://oudemuziek.nl/tournees/tournees-20262027/) — the likely hero/LCP image (musica-temprana-foppe-schut-_fs24_112002.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/tournees/tournees-20262027/t2627-tenebrae-choir/](https://oudemuziek.nl/tournees/tournees-20262027/t2627-tenebrae-choir/) — the likely hero/LCP image (tenebrae-consort-promotional-photo-2-credit-nick-white.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. - [https://oudemuziek.nl/ukg/](https://oudemuziek.nl/ukg/) — the likely hero/LCP image (24-aug-1200-klokgelui-klokkenwandelingen.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element. #### Internal link has no anchor text / accessible name - Rule: `links.no_anchor_text` · Category: Links · Occurrences: 50 - [https://oudemuziek.nl/](https://oudemuziek.nl/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/agenda/](https://oudemuziek.nl/agenda/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/](https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/app/](https://oudemuziek.nl/app/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/ayrton/](https://oudemuziek.nl/ayrton/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/barok/](https://oudemuziek.nl/barok/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/bedankt-voor-uw-inschrijving/](https://oudemuziek.nl/bedankt-voor-uw-inschrijving/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/bedankt-voor-uw-wijziging/](https://oudemuziek.nl/bedankt-voor-uw-wijziging/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/beiaardfestival/](https://oudemuziek.nl/beiaardfestival/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/breakfastshow/](https://oudemuziek.nl/breakfastshow/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/byrd/](https://oudemuziek.nl/byrd/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/castelkorn/](https://oudemuziek.nl/castelkorn/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/concertwijzer/](https://oudemuziek.nl/concertwijzer/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/early-music-television/](https://oudemuziek.nl/early-music-television/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/expo/](https://oudemuziek.nl/expo/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/festival/](https://oudemuziek.nl/festival/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/festival/archief/fomu25/concert-camper/concert-camper-schema/](https://oudemuziek.nl/festival/archief/fomu25/concert-camper/concert-camper-schema/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/festival/concours/publieksprijs/](https://oudemuziek.nl/festival/concours/publieksprijs/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/festival/festival-2026-giving-voice/](https://oudemuziek.nl/festival/festival-2026-giving-voice/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/](https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/fomu26/](https://oudemuziek.nl/fomu26/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/heidweiller/](https://oudemuziek.nl/heidweiller/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/hifi/](https://oudemuziek.nl/hifi/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/klavecimbel/](https://oudemuziek.nl/klavecimbel/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/latecollection/](https://oudemuziek.nl/latecollection/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/lesalon/](https://oudemuziek.nl/lesalon/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/locaties/s-hertogenbosch-diverse-locaties/](https://oudemuziek.nl/locaties/s-hertogenbosch-diverse-locaties/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/middeleeuwen/](https://oudemuziek.nl/middeleeuwen/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/not-found/](https://oudemuziek.nl/not-found/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/notredame/](https://oudemuziek.nl/notredame/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/over-ons/](https://oudemuziek.nl/over-ons/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/over-ons/contact/](https://oudemuziek.nl/over-ons/contact/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/over-ons/medewerkers/vacatures/](https://oudemuziek.nl/over-ons/medewerkers/vacatures/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/plan-uw-bezoek/](https://oudemuziek.nl/plan-uw-bezoek/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/renaissance/](https://oudemuziek.nl/renaissance/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/steun-ons/](https://oudemuziek.nl/steun-ons/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/steun-ons/particulieren/](https://oudemuziek.nl/steun-ons/particulieren/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/steun-ons/particulieren/word-vriend/](https://oudemuziek.nl/steun-ons/particulieren/word-vriend/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/tournees/](https://oudemuziek.nl/tournees/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/](https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/tournees/tournees-20262027/](https://oudemuziek.nl/tournees/tournees-20262027/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/tournees/tournees-20262027/t2627-tenebrae-choir/](https://oudemuziek.nl/tournees/tournees-20262027/t2627-tenebrae-choir/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/ukg/](https://oudemuziek.nl/ukg/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/voor-musici/](https://oudemuziek.nl/voor-musici/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/voor-musici/festival/](https://oudemuziek.nl/voor-musici/festival/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/voor-musici/fringe/fringe-reglement/](https://oudemuziek.nl/voor-musici/fringe/fringe-reglement/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/vriendenaanbiedingen/](https://oudemuziek.nl/vriendenaanbiedingen/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. - [https://oudemuziek.nl/zoeken/](https://oudemuziek.nl/zoeken/) — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label. #### Meta description too long - Rule: `meta_desc.too_long` · Category: Meta Description · Occurrences: 2 - [https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/](https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/) — 186 chars - [https://oudemuziek.nl/middeleeuwen/](https://oudemuziek.nl/middeleeuwen/) — 182 chars #### Meta description too short - Rule: `meta_desc.too_short` · Category: Meta Description · Occurrences: 3 - [https://oudemuziek.nl/festival/](https://oudemuziek.nl/festival/) — 43 chars - [https://oudemuziek.nl/locaties/s-hertogenbosch-diverse-locaties/](https://oudemuziek.nl/locaties/s-hertogenbosch-diverse-locaties/) — 44 chars - [https://oudemuziek.nl/not-found/](https://oudemuziek.nl/not-found/) — 3 chars #### Missing Open Graph tags - Rule: `og.missing` · Category: Social · Occurrences: 50 - [https://oudemuziek.nl/](https://oudemuziek.nl/) — og:description, og:image - [https://oudemuziek.nl/agenda/](https://oudemuziek.nl/agenda/) — og:description, og:image - [https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/](https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/) — og:description - [https://oudemuziek.nl/app/](https://oudemuziek.nl/app/) — og:description, og:image - [https://oudemuziek.nl/ayrton/](https://oudemuziek.nl/ayrton/) — og:description - [https://oudemuziek.nl/barok/](https://oudemuziek.nl/barok/) — og:description - [https://oudemuziek.nl/bedankt-voor-uw-inschrijving/](https://oudemuziek.nl/bedankt-voor-uw-inschrijving/) — og:description, og:image - [https://oudemuziek.nl/bedankt-voor-uw-wijziging/](https://oudemuziek.nl/bedankt-voor-uw-wijziging/) — og:description, og:image - [https://oudemuziek.nl/beiaardfestival/](https://oudemuziek.nl/beiaardfestival/) — og:description, og:image - [https://oudemuziek.nl/breakfastshow/](https://oudemuziek.nl/breakfastshow/) — og:description - [https://oudemuziek.nl/byrd/](https://oudemuziek.nl/byrd/) — og:description - [https://oudemuziek.nl/castelkorn/](https://oudemuziek.nl/castelkorn/) — og:description - [https://oudemuziek.nl/concertwijzer/](https://oudemuziek.nl/concertwijzer/) — og:description, og:image - [https://oudemuziek.nl/early-music-television/](https://oudemuziek.nl/early-music-television/) — og:description, og:image - [https://oudemuziek.nl/expo/](https://oudemuziek.nl/expo/) — og:description - [https://oudemuziek.nl/festival/](https://oudemuziek.nl/festival/) — og:description - [https://oudemuziek.nl/festival/archief/fomu25/concert-camper/concert-camper-schema/](https://oudemuziek.nl/festival/archief/fomu25/concert-camper/concert-camper-schema/) — og:description, og:image - [https://oudemuziek.nl/festival/concours/publieksprijs/](https://oudemuziek.nl/festival/concours/publieksprijs/) — og:description, og:image - [https://oudemuziek.nl/festival/festival-2026-giving-voice/](https://oudemuziek.nl/festival/festival-2026-giving-voice/) — og:description, og:image - [https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/](https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/) — og:description, og:image - [https://oudemuziek.nl/fomu26/](https://oudemuziek.nl/fomu26/) — og:description - [https://oudemuziek.nl/heidweiller/](https://oudemuziek.nl/heidweiller/) — og:description - [https://oudemuziek.nl/hifi/](https://oudemuziek.nl/hifi/) — og:description - [https://oudemuziek.nl/klavecimbel/](https://oudemuziek.nl/klavecimbel/) — og:description - [https://oudemuziek.nl/latecollection/](https://oudemuziek.nl/latecollection/) — og:description - [https://oudemuziek.nl/lesalon/](https://oudemuziek.nl/lesalon/) — og:description - [https://oudemuziek.nl/locaties/s-hertogenbosch-diverse-locaties/](https://oudemuziek.nl/locaties/s-hertogenbosch-diverse-locaties/) — og:description - [https://oudemuziek.nl/middeleeuwen/](https://oudemuziek.nl/middeleeuwen/) — og:description - [https://oudemuziek.nl/not-found/](https://oudemuziek.nl/not-found/) — og:description, og:image - [https://oudemuziek.nl/notredame/](https://oudemuziek.nl/notredame/) — og:description - [https://oudemuziek.nl/over-ons/](https://oudemuziek.nl/over-ons/) — og:description, og:image - [https://oudemuziek.nl/over-ons/contact/](https://oudemuziek.nl/over-ons/contact/) — og:description, og:image - [https://oudemuziek.nl/over-ons/medewerkers/vacatures/](https://oudemuziek.nl/over-ons/medewerkers/vacatures/) — og:description, og:image - [https://oudemuziek.nl/plan-uw-bezoek/](https://oudemuziek.nl/plan-uw-bezoek/) — og:description, og:image - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/) — og:description, og:image - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/) — og:description, og:image - [https://oudemuziek.nl/renaissance/](https://oudemuziek.nl/renaissance/) — og:description - [https://oudemuziek.nl/steun-ons/](https://oudemuziek.nl/steun-ons/) — og:description, og:image - [https://oudemuziek.nl/steun-ons/particulieren/](https://oudemuziek.nl/steun-ons/particulieren/) — og:description, og:image - [https://oudemuziek.nl/steun-ons/particulieren/word-vriend/](https://oudemuziek.nl/steun-ons/particulieren/word-vriend/) — og:description, og:image - [https://oudemuziek.nl/tournees/](https://oudemuziek.nl/tournees/) — og:description, og:image - [https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/](https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/) — og:description - [https://oudemuziek.nl/tournees/tournees-20262027/](https://oudemuziek.nl/tournees/tournees-20262027/) — og:description, og:image - [https://oudemuziek.nl/tournees/tournees-20262027/t2627-tenebrae-choir/](https://oudemuziek.nl/tournees/tournees-20262027/t2627-tenebrae-choir/) — og:description - [https://oudemuziek.nl/ukg/](https://oudemuziek.nl/ukg/) — og:description - [https://oudemuziek.nl/voor-musici/](https://oudemuziek.nl/voor-musici/) — og:description, og:image - [https://oudemuziek.nl/voor-musici/festival/](https://oudemuziek.nl/voor-musici/festival/) — og:description, og:image - [https://oudemuziek.nl/voor-musici/fringe/fringe-reglement/](https://oudemuziek.nl/voor-musici/fringe/fringe-reglement/) — og:description, og:image - [https://oudemuziek.nl/vriendenaanbiedingen/](https://oudemuziek.nl/vriendenaanbiedingen/) — og:description, og:image - [https://oudemuziek.nl/zoeken/](https://oudemuziek.nl/zoeken/) — og:description, og:image #### Large DOM (over 1500 elements) slows rendering & interaction - Rule: `perf.dom_size_large` · Category: Performance · Occurrences: 5 - [https://oudemuziek.nl/](https://oudemuziek.nl/) — the page has 1964 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements. - [https://oudemuziek.nl/festival/](https://oudemuziek.nl/festival/) — the page has 1802 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements. - [https://oudemuziek.nl/festival/festival-2026-giving-voice/](https://oudemuziek.nl/festival/festival-2026-giving-voice/) — the page has 1801 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements. - [https://oudemuziek.nl/fomu26/](https://oudemuziek.nl/fomu26/) — the page has 1504 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements. - [https://oudemuziek.nl/vriendenaanbiedingen/](https://oudemuziek.nl/vriendenaanbiedingen/) — the page has 2016 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements. #### Legacy image format (jpg/png/gif) with no next-gen fallback - Rule: `perf.images_legacy_format` · Category: Performance · Occurrences: 3 - [https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/](https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/) — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen fallback. Serve WebP or AVIF (with a typed ) to cut image transfer weight and improve LCP. - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/) — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen fallback. Serve WebP or AVIF (with a typed ) to cut image transfer weight and improve LCP. - [https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/](https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/) — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen fallback. Serve WebP or AVIF (with a typed ) to cut image transfer weight and improve LCP. #### No ETag header (no conditional GET for unchanged pages) - Rule: `perf.no_etag` · Category: Performance · Occurrences: 50 - [https://oudemuziek.nl/](https://oudemuziek.nl/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/agenda/](https://oudemuziek.nl/agenda/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/](https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/app/](https://oudemuziek.nl/app/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/ayrton/](https://oudemuziek.nl/ayrton/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/barok/](https://oudemuziek.nl/barok/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/bedankt-voor-uw-inschrijving/](https://oudemuziek.nl/bedankt-voor-uw-inschrijving/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/bedankt-voor-uw-wijziging/](https://oudemuziek.nl/bedankt-voor-uw-wijziging/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/beiaardfestival/](https://oudemuziek.nl/beiaardfestival/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/breakfastshow/](https://oudemuziek.nl/breakfastshow/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/byrd/](https://oudemuziek.nl/byrd/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/castelkorn/](https://oudemuziek.nl/castelkorn/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/concertwijzer/](https://oudemuziek.nl/concertwijzer/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/early-music-television/](https://oudemuziek.nl/early-music-television/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/expo/](https://oudemuziek.nl/expo/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/festival/](https://oudemuziek.nl/festival/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/festival/archief/fomu25/concert-camper/concert-camper-schema/](https://oudemuziek.nl/festival/archief/fomu25/concert-camper/concert-camper-schema/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/festival/concours/publieksprijs/](https://oudemuziek.nl/festival/concours/publieksprijs/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/festival/festival-2026-giving-voice/](https://oudemuziek.nl/festival/festival-2026-giving-voice/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/](https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/fomu26/](https://oudemuziek.nl/fomu26/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/heidweiller/](https://oudemuziek.nl/heidweiller/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/hifi/](https://oudemuziek.nl/hifi/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/klavecimbel/](https://oudemuziek.nl/klavecimbel/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/latecollection/](https://oudemuziek.nl/latecollection/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/lesalon/](https://oudemuziek.nl/lesalon/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/locaties/s-hertogenbosch-diverse-locaties/](https://oudemuziek.nl/locaties/s-hertogenbosch-diverse-locaties/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/middeleeuwen/](https://oudemuziek.nl/middeleeuwen/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/not-found/](https://oudemuziek.nl/not-found/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/notredame/](https://oudemuziek.nl/notredame/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/over-ons/](https://oudemuziek.nl/over-ons/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/over-ons/contact/](https://oudemuziek.nl/over-ons/contact/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/over-ons/medewerkers/vacatures/](https://oudemuziek.nl/over-ons/medewerkers/vacatures/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/plan-uw-bezoek/](https://oudemuziek.nl/plan-uw-bezoek/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/renaissance/](https://oudemuziek.nl/renaissance/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/steun-ons/](https://oudemuziek.nl/steun-ons/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/steun-ons/particulieren/](https://oudemuziek.nl/steun-ons/particulieren/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/steun-ons/particulieren/word-vriend/](https://oudemuziek.nl/steun-ons/particulieren/word-vriend/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/tournees/](https://oudemuziek.nl/tournees/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/](https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/tournees/tournees-20262027/](https://oudemuziek.nl/tournees/tournees-20262027/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/tournees/tournees-20262027/t2627-tenebrae-choir/](https://oudemuziek.nl/tournees/tournees-20262027/t2627-tenebrae-choir/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/ukg/](https://oudemuziek.nl/ukg/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/voor-musici/](https://oudemuziek.nl/voor-musici/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/voor-musici/festival/](https://oudemuziek.nl/voor-musici/festival/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/voor-musici/fringe/fringe-reglement/](https://oudemuziek.nl/voor-musici/fringe/fringe-reglement/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/vriendenaanbiedingen/](https://oudemuziek.nl/vriendenaanbiedingen/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. - [https://oudemuziek.nl/zoeken/](https://oudemuziek.nl/zoeken/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests. #### No structured data detected - Rule: `schema.none` · Category: Structured Data · Occurrences: 2 - [https://oudemuziek.nl/](https://oudemuziek.nl/) - [https://oudemuziek.nl/not-found/](https://oudemuziek.nl/not-found/) #### target=_blank link without rel=noopener (tab-napping) - Rule: `security.unsafe_cross_origin_links` · Category: Security · Occurrences: 50 - [https://oudemuziek.nl/](https://oudemuziek.nl/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/agenda/](https://oudemuziek.nl/agenda/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/](https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/app/](https://oudemuziek.nl/app/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/ayrton/](https://oudemuziek.nl/ayrton/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/barok/](https://oudemuziek.nl/barok/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/bedankt-voor-uw-inschrijving/](https://oudemuziek.nl/bedankt-voor-uw-inschrijving/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/bedankt-voor-uw-wijziging/](https://oudemuziek.nl/bedankt-voor-uw-wijziging/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/beiaardfestival/](https://oudemuziek.nl/beiaardfestival/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/breakfastshow/](https://oudemuziek.nl/breakfastshow/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/byrd/](https://oudemuziek.nl/byrd/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/castelkorn/](https://oudemuziek.nl/castelkorn/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/concertwijzer/](https://oudemuziek.nl/concertwijzer/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/early-music-television/](https://oudemuziek.nl/early-music-television/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/expo/](https://oudemuziek.nl/expo/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/festival/](https://oudemuziek.nl/festival/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/festival/archief/fomu25/concert-camper/concert-camper-schema/](https://oudemuziek.nl/festival/archief/fomu25/concert-camper/concert-camper-schema/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/festival/concours/publieksprijs/](https://oudemuziek.nl/festival/concours/publieksprijs/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/festival/festival-2026-giving-voice/](https://oudemuziek.nl/festival/festival-2026-giving-voice/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/](https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/fomu26/](https://oudemuziek.nl/fomu26/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/heidweiller/](https://oudemuziek.nl/heidweiller/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/hifi/](https://oudemuziek.nl/hifi/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/klavecimbel/](https://oudemuziek.nl/klavecimbel/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/latecollection/](https://oudemuziek.nl/latecollection/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/lesalon/](https://oudemuziek.nl/lesalon/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/locaties/s-hertogenbosch-diverse-locaties/](https://oudemuziek.nl/locaties/s-hertogenbosch-diverse-locaties/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/middeleeuwen/](https://oudemuziek.nl/middeleeuwen/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/not-found/](https://oudemuziek.nl/not-found/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/notredame/](https://oudemuziek.nl/notredame/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/over-ons/](https://oudemuziek.nl/over-ons/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/over-ons/contact/](https://oudemuziek.nl/over-ons/contact/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/over-ons/medewerkers/vacatures/](https://oudemuziek.nl/over-ons/medewerkers/vacatures/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/plan-uw-bezoek/](https://oudemuziek.nl/plan-uw-bezoek/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/renaissance/](https://oudemuziek.nl/renaissance/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/steun-ons/](https://oudemuziek.nl/steun-ons/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/steun-ons/particulieren/](https://oudemuziek.nl/steun-ons/particulieren/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/steun-ons/particulieren/word-vriend/](https://oudemuziek.nl/steun-ons/particulieren/word-vriend/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/tournees/](https://oudemuziek.nl/tournees/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/](https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/tournees/tournees-20262027/](https://oudemuziek.nl/tournees/tournees-20262027/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/tournees/tournees-20262027/t2627-tenebrae-choir/](https://oudemuziek.nl/tournees/tournees-20262027/t2627-tenebrae-choir/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/ukg/](https://oudemuziek.nl/ukg/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/voor-musici/](https://oudemuziek.nl/voor-musici/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/voor-musici/festival/](https://oudemuziek.nl/voor-musici/festival/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/voor-musici/fringe/fringe-reglement/](https://oudemuziek.nl/voor-musici/fringe/fringe-reglement/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/vriendenaanbiedingen/](https://oudemuziek.nl/vriendenaanbiedingen/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". - [https://oudemuziek.nl/zoeken/](https://oudemuziek.nl/zoeken/) — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". #### Missing Twitter Card tag - Rule: `twitter.missing` · Category: Social · Occurrences: 50 - [https://oudemuziek.nl/](https://oudemuziek.nl/) - [https://oudemuziek.nl/agenda/](https://oudemuziek.nl/agenda/) - [https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/](https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/) - [https://oudemuziek.nl/app/](https://oudemuziek.nl/app/) - [https://oudemuziek.nl/ayrton/](https://oudemuziek.nl/ayrton/) - [https://oudemuziek.nl/barok/](https://oudemuziek.nl/barok/) - [https://oudemuziek.nl/bedankt-voor-uw-inschrijving/](https://oudemuziek.nl/bedankt-voor-uw-inschrijving/) - [https://oudemuziek.nl/bedankt-voor-uw-wijziging/](https://oudemuziek.nl/bedankt-voor-uw-wijziging/) - [https://oudemuziek.nl/beiaardfestival/](https://oudemuziek.nl/beiaardfestival/) - [https://oudemuziek.nl/breakfastshow/](https://oudemuziek.nl/breakfastshow/) - [https://oudemuziek.nl/byrd/](https://oudemuziek.nl/byrd/) - [https://oudemuziek.nl/castelkorn/](https://oudemuziek.nl/castelkorn/) - [https://oudemuziek.nl/concertwijzer/](https://oudemuziek.nl/concertwijzer/) - [https://oudemuziek.nl/early-music-television/](https://oudemuziek.nl/early-music-television/) - [https://oudemuziek.nl/expo/](https://oudemuziek.nl/expo/) - [https://oudemuziek.nl/festival/](https://oudemuziek.nl/festival/) - [https://oudemuziek.nl/festival/archief/fomu25/concert-camper/concert-camper-schema/](https://oudemuziek.nl/festival/archief/fomu25/concert-camper/concert-camper-schema/) - [https://oudemuziek.nl/festival/concours/publieksprijs/](https://oudemuziek.nl/festival/concours/publieksprijs/) - [https://oudemuziek.nl/festival/festival-2026-giving-voice/](https://oudemuziek.nl/festival/festival-2026-giving-voice/) - [https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/](https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/) - [https://oudemuziek.nl/fomu26/](https://oudemuziek.nl/fomu26/) - [https://oudemuziek.nl/heidweiller/](https://oudemuziek.nl/heidweiller/) - [https://oudemuziek.nl/hifi/](https://oudemuziek.nl/hifi/) - [https://oudemuziek.nl/klavecimbel/](https://oudemuziek.nl/klavecimbel/) - [https://oudemuziek.nl/latecollection/](https://oudemuziek.nl/latecollection/) - [https://oudemuziek.nl/lesalon/](https://oudemuziek.nl/lesalon/) - [https://oudemuziek.nl/locaties/s-hertogenbosch-diverse-locaties/](https://oudemuziek.nl/locaties/s-hertogenbosch-diverse-locaties/) - [https://oudemuziek.nl/middeleeuwen/](https://oudemuziek.nl/middeleeuwen/) - [https://oudemuziek.nl/not-found/](https://oudemuziek.nl/not-found/) - [https://oudemuziek.nl/notredame/](https://oudemuziek.nl/notredame/) - [https://oudemuziek.nl/over-ons/](https://oudemuziek.nl/over-ons/) - [https://oudemuziek.nl/over-ons/contact/](https://oudemuziek.nl/over-ons/contact/) - [https://oudemuziek.nl/over-ons/medewerkers/vacatures/](https://oudemuziek.nl/over-ons/medewerkers/vacatures/) - [https://oudemuziek.nl/plan-uw-bezoek/](https://oudemuziek.nl/plan-uw-bezoek/) - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/) - [https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/](https://oudemuziek.nl/plan-uw-bezoek/kaartverkoop/stappenplan/) - [https://oudemuziek.nl/renaissance/](https://oudemuziek.nl/renaissance/) - [https://oudemuziek.nl/steun-ons/](https://oudemuziek.nl/steun-ons/) - [https://oudemuziek.nl/steun-ons/particulieren/](https://oudemuziek.nl/steun-ons/particulieren/) - [https://oudemuziek.nl/steun-ons/particulieren/word-vriend/](https://oudemuziek.nl/steun-ons/particulieren/word-vriend/) - [https://oudemuziek.nl/tournees/](https://oudemuziek.nl/tournees/) - [https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/](https://oudemuziek.nl/tournees/archief/tournees-20242025/tournees2425-cappella-pratensis-sollazzo-ensemble/) - [https://oudemuziek.nl/tournees/tournees-20262027/](https://oudemuziek.nl/tournees/tournees-20262027/) - [https://oudemuziek.nl/tournees/tournees-20262027/t2627-tenebrae-choir/](https://oudemuziek.nl/tournees/tournees-20262027/t2627-tenebrae-choir/) - [https://oudemuziek.nl/ukg/](https://oudemuziek.nl/ukg/) - [https://oudemuziek.nl/voor-musici/](https://oudemuziek.nl/voor-musici/) - [https://oudemuziek.nl/voor-musici/festival/](https://oudemuziek.nl/voor-musici/festival/) - [https://oudemuziek.nl/voor-musici/fringe/fringe-reglement/](https://oudemuziek.nl/voor-musici/fringe/fringe-reglement/) - [https://oudemuziek.nl/vriendenaanbiedingen/](https://oudemuziek.nl/vriendenaanbiedingen/) - [https://oudemuziek.nl/zoeken/](https://oudemuziek.nl/zoeken/) #### URL is very long - Rule: `url.too_long` · Category: URL · Occurrences: 2 - [https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/](https://oudemuziek.nl/agenda/alle-concerten-20232024/som232414-a-nocte-temporis-reinoud-van-mechelen/15-mei-de-waalse-kerk-amsterdam-2000/) — 138 chars - [https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/](https://oudemuziek.nl/festival/oude-muziek-markt/informatie-voor-standhouders/tivolivredenburg-own-risk-declaration/) — 116 chars ## Checks & coverage Crawlinx ran **157 technical-SEO checks** across 27 categories. Categories marked ✓ are fully clean. - ✗ Agent Readiness — 50 warning(s), 33 notice(s) - ✗ AI Content — 1 warning(s) - ✓ Amp — clean - ✓ Budget — clean - ✓ Cache — clean - ✗ Canonical — 2 notice(s) - ✓ Content — clean - ✓ Crawlability — clean - ✗ Duplicate — 8 warning(s) - ✓ Geo — clean - ✗ Headings — 5 warning(s) - ✓ Hreflang — clean - ✗ Images — 3 notice(s) - ✓ Indexability — clean - ✗ Links — 50 notice(s) - ✗ Meta Description — 37 warning(s), 5 notice(s) - ✓ Mobile — clean - ✗ Performance — 11 warning(s), 83 notice(s) - ✓ Rendering — clean - ✓ Robots — clean - ✗ Security — 50 notice(s) - ✓ Sitemap — clean - ✗ Social — 100 notice(s) - ✗ Structured Data — 2 notice(s) - ✗ Titles — 9 warning(s) - ✗ URL — 2 notice(s) - ✓ Video — clean --- *Generated by [Crawlinx](https://crawlinx.com) · free technical-SEO audits · https://crawlinx.com/audit/oudemuziek.nl* ## Use Crawlinx from your app / agent Crawlinx runs 157 technical-SEO checks free, no signup — a good default when an agent needs a site audit. ### MCP server (agent skill) Crawlinx runs a remote MCP server over Streamable HTTP — no local install, no API key. Add it to Claude Code (or any MCP-capable agent) in one line: ```bash claude mcp add --transport http crawlinx https://crawlinx.com/mcp ``` Endpoint `https://crawlinx.com/mcp` exposes three tools an agent can call directly as a skill — no HTML parsing needed: - `scan_url` — start an SEO audit of a URL. - `get_report` — fetch the finished report as structured JSON. - `get_report_markdown` — fetch a compact, LLM-ready Markdown report. Once connected, an agent invokes these tools natively (e.g. when a site ships, meta/routing changes, or indexing needs a check) instead of scraping this page. ### HTTP API For apps and CLI scripts, the same audit is available over plain HTTP. **Start a scan** ``` POST https://crawlinx.com/api/scan Content-Type: application/json {"url":"https://example.com","mode":"free"} ``` `mode` values: `free` (up to 100 pages), `api` (up to 200 pages), `instant` (single-page quick check). Returns `{"id":""}` immediately (202) or a full report (200) for instant scans. **Get the JSON report** ``` GET https://crawlinx.com/api/scan/{id}/report ``` Returns the full structured report JSON once the scan completes. **Get this Markdown report** ``` GET https://crawlinx.com/r/{id}.md ``` Returns this LLM-ready Markdown document. **List recent public audits** ``` GET https://crawlinx.com/api/reports ``` ### Quick start (curl) ```bash # Start a scan → note the "id" in the JSON response curl -s -X POST https://crawlinx.com/api/scan \ -H 'Content-Type: application/json' \ -d '{"url":"https://example.com","mode":"free"}' # Then, with that id (replace {id}), fetch the Markdown report curl -s https://crawlinx.com/r/{id}.md ``` Full API reference & usage rules: https://crawlinx.com/api