Catalog / nion-digital.com
79

SEO audit for nion-digital.com

nion digital - Digital Experiences, die Innovation und Verantwortung vereinen

other

Health 79/100 (good) · 50 pages crawled · generated 2026-08-26

Download Markdown report (feed to ChatGPT / Claude / Cursor)

Als Digitalstudio gestalten wir datengestützte, digitale Experiences mit dem Anspruch bestmöglicher Barrierefreiheit und folgen zugleich nachhaltigen Prinzipien. Unsere Projekte starten oft mit Protot…

Screenshot of nion-digital.com
50
pages crawled
49
indexable pages
2
errors
29
warnings
395
notices
0
orphan pages
1
broken links
Category breakdown
CategoryScoreErrorsWarningsNotices
Links 96 1 4 0
Crawlability 98 1 0 1
Performance 93 0 12 95
Agent Readiness 98 0 4 1
Duplicate 98 0 3 13
Titles 98 0 3 0
Content 99 0 2 9
Headings 99 0 1 1
Images 100 0 0 27
Indexability 100 0 0 49
Meta Description 100 0 0 23
Security 100 0 0 99
Sitemap 100 0 0 2
Social 100 0 0 67
Structured Data 100 0 0 4
URL 100 0 0 4
Findings

Errors (2 rules)

error Broken internal link (target 4xx/5xx)

Rule links.broken_internal · Links · 1 occurrence(s)

  • https://www.nion-digital.com/empfehlungen/buecher/ — https://www.nion-digital.com/empfehlungen/buecher/k%C3%A4ufers/dp/3987550643/ref=sr_1_1?crid=3Q16O3A3FQA5N&keywords=maurice+bork&qid=1700160644&sprefix=maurice+bork%2Caps%2C192&sr=8-1 (HTTP 410)

Warnings (7 rules)

warning Control has no accessible name

Rule agent.control_no_name · Agent Readiness · 4 occurrence(s)

warning Thin content (low word count)

Rule content.thin · Content · 2 occurrence(s)

warning Duplicate <title> across pages

Rule duplicate.title · Duplicate · 3 occurrence(s)

warning Missing <h1>

Rule h1.missing · Headings · 1 occurrence(s)

warning Hero/LCP image is lazy-loaded (loading=lazy delays LCP)

Rule images.no_lazy_lcp_candidate · Performance · 12 occurrence(s)

  • https://www.nion-digital.com/ — the likely hero/LCP image (riese-mueller-bike.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://www.nion-digital.com/barrierefreiheit/ — the likely hero/LCP image (martin-wolf-portrait.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://www.nion-digital.com/empfehlungen/ — the likely hero/LCP image (4000-wochen.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://www.nion-digital.com/empfehlungen/buecher/ — the likely hero/LCP image (4000-wochen.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://www.nion-digital.com/empfehlungen/podcasts/ — the likely hero/LCP image (shoptalk-show-logo.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://www.nion-digital.com/empfehlungen/vortraege/ — the likely hero/LCP image (alberto-savoia-stanford-seminar.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://www.nion-digital.com/projekte/ — the likely hero/LCP image (riese-mueller-bike.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://www.nion-digital.com/services/design-systeme-entwicklung/ — the likely hero/LCP image (nion-digital-designsysteme.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://www.nion-digital.com/sustainable-web-audit/ — the likely hero/LCP image (swa_synergy-bg.svg) 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://www.nion-digital.com/sustainable-web-audit/reports/194fc4a78a834cc8b16a10ae9a4179d0/ — the likely hero/LCP image (jens-franke-portrait.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://www.nion-digital.com/sustainable-web-audit/reports/bec7494830664d3b8a520fbd84e38e21/ — the likely hero/LCP image (jens-franke-portrait.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://www.nion-digital.com/ueber-uns/ — the likely hero/LCP image (nion-digital-haltung-werte.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.

warning Internal link points to a redirect

Rule links.redirect_target · Links · 4 occurrence(s)

warning Title likely truncated in SERP (too wide)

Rule title.too_long · Titles · 3 occurrence(s)

Notices (24 rules)

notice No llms.txt for AI agents

Rule agent.llms_txt_missing · Agent Readiness · 1 occurrence(s)

notice noarchive directive (blocks cached copy)

Rule directives.noarchive · Indexability · 49 occurrence(s)

notice Duplicate meta description across pages

Rule duplicate.meta_desc · Duplicate · 13 occurrence(s)

notice Multiple <h1> elements

Rule h1.multiple · Headings · 1 occurrence(s)

notice Image alt text is keyword-stuffed (repetition / low variety)

Rule images.alt_stuffed · Images · 4 occurrence(s)

notice Image alt text is very long (possible keyword stuffing)

Rule images.alt_too_long · Images · 23 occurrence(s)

notice Meta description too short

Rule meta_desc.too_short · Meta Description · 4 occurrence(s)

notice Large DOM (over 1500 elements) slows rendering & interaction

Rule perf.dom_size_large · Performance · 2 occurrence(s)

notice Legacy image format (jpg/png/gif) with no next-gen fallback

Rule perf.images_legacy_format · Performance · 44 occurrence(s)

notice No Last-Modified header (no conditional GET for unchanged pages)

Rule perf.no_last_modified · Performance · 49 occurrence(s)

  • https://www.nion-digital.com/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/agb/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/arbeitsweise/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/barrierefreiheit/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/benefits-fuer-mitarbeiter/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/datenschutz/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/empfehlungen/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/empfehlungen/buecher/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/empfehlungen/podcasts/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/erklaerung-zur-barrierefreiheit/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/events/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/events/claude-code-meetup-muenchen/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/impressum/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/jobs/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/jobs/agentic-engineer-w-m-d/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/nion-next-2025/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/nion-next-2025/masterclasses/david-hillmer/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/projekte/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/projekte/artek/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/services/design-systeme-entwicklung/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/sustainable-web-audit/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/sustainable-web-audit/reports/194fc4a78a834cc8b16a10ae9a4179d0/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/team/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/ueber-uns/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
  • https://www.nion-digital.com/ueber-uns/ki-grundsaetze/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.

notice URL redirects to another URL

Rule redirect.single · Crawlability · 1 occurrence(s)

notice Deep page has no BreadcrumbList structured data

Rule schema.breadcrumb_missing · Structured Data · 1 occurrence(s)

notice FAQPage structured data (rich result removed May 2026)

Rule schema.faq_deprecated · Structured Data · 3 occurrence(s)

  • https://www.nion-digital.com/barrierefreiheit/ — FAQPage structured data is present — Google removed FAQ rich results on 7 May 2026 (except for authoritative government/health sites). The markup is harmless but earns no SERP enhancement; remove it during template maintenance.
  • https://www.nion-digital.com/nion-next-2025/ — FAQPage structured data is present — Google removed FAQ rich results on 7 May 2026 (except for authoritative government/health sites). The markup is harmless but earns no SERP enhancement; remove it during template maintenance.
  • https://www.nion-digital.com/sustainable-web-audit/ — FAQPage structured data is present — Google removed FAQ rich results on 7 May 2026 (except for authoritative government/health sites). The markup is harmless but earns no SERP enhancement; remove it during template maintenance.

notice Missing recommended security headers

Rule security.missing_headers · Security · 50 occurrence(s)

notice target=_blank link without rel=noopener (tab-napping)

Rule security.unsafe_cross_origin_links · Security · 49 occurrence(s)

notice Indexable page not listed in sitemap

Rule sitemap.orphan_not_listed · Sitemap · 2 occurrence(s)

Pages (showing 50 of 50)
URLStatusIndexableWordsIn-links
https://www.nion-digital.com/sustainable-web-audit/
Sustainable Web Audit - nion digital
200 yes 1359 50
https://www.nion-digital.com/
nion digital - Digital Experiences, die Innovation und Verantwortung vereinen
200 yes 465 48
https://www.nion-digital.com/agb/
Allgemeine Geschäftsbedingungen - nion digital
200 yes 3090 48
https://www.nion-digital.com/barrierefreiheit/
Barrierefreiheit - nion digital
200 yes 1183 48
https://www.nion-digital.com/datenschutz/
Datenschutz - nion digital
200 yes 1803 48
https://www.nion-digital.com/erklaerung-zur-barrierefreiheit/
nion digital GmbH
200 yes 317 48
https://www.nion-digital.com/impressum/
Impressum - nion digital
200 yes 267 48
https://www.nion-digital.com/nion-next-2025/
nion next 25 Konferenz - nion digital
200 yes 786 48
https://www.nion-digital.com/ueber-uns/
Über uns - nion digital
200 yes 110 38
https://www.nion-digital.com/arbeitsweise/
Wie wir arbeiten - nion digital
200 yes 512 36
https://www.nion-digital.com/jobs/
Werde Teil von nion digital - nion digital
200 yes 212 36
https://www.nion-digital.com/projekte/
Projekte - nion digital
200 yes 239 36
https://www.nion-digital.com/team/
Das Team - nion digital
200 yes 1299 4
https://www.nion-digital.com/sustainable-web-audit/reports/194fc4a78a834cc8b16a10ae9a4179d0/
Viva con Agua – nion digital
200 yes 4035 2
https://www.nion-digital.com/sustainable-web-audit/reports/bec7494830664d3b8a520fbd84e38e21/
1KOMMA5° – nion digital
200 yes 3288 2
https://www.nion-digital.com/events/
Events - nion digital
200 yes 379 3
https://www.nion-digital.com/projekte/artek/
Artek: Website-Entwicklung - nion digital
200 yes 322 3
https://www.nion-digital.com/projekte/jungfraubahnen/
Jungfraubahnen: Frontend-Applikationen - nion digital
200 yes 379 3
https://www.nion-digital.com/projekte/onefootball/
OneFootball: Modulares Brand-Portal - nion digital
200 yes 248 3
https://www.nion-digital.com/projekte/deutsche-wildtier-stiftung/
Deutsche Wildtier Stiftung: Web-Portal - nion digital
200 yes 294 2
https://www.nion-digital.com/projekte/riese-mueller/
Riese & Müller: Konnektivitäts-Plattform und App - nion digital
200 yes 950 2
https://www.nion-digital.com/projekte/schweizer-alpen-club-sac/
Schweizer Alpen-Club: Frontend-Entwicklung - nion digital
200 yes 293 2
https://www.nion-digital.com/nion-next-2025/vortraege/enrico-kunze/
Unlocking Inclusion: Making the Digital World Neuro-Friendly - nion digital
200 yes 217 1
https://www.nion-digital.com/nion-next-2025/vortraege/markus-iofcea/
Zurück zur Zukunft – Über den bewussten und kreativen Umgang mit Zukünften - nion digital
200 yes 274 1
https://www.nion-digital.com/nion-next-2025/vortraege/peter-post/
Circular Experience Design - nion digital
200 yes 223 1
https://www.nion-digital.com/nion-next-2025/vortraege/prof-dr-johanna-gollnhofer/
Das 60% Potenzial – Wie Marketing zum Hebel in der grünen Transformation wird - nion digital
200 yes 293 1
https://www.nion-digital.com/nion-next-2025/vortraege/steffen-erath/
Nachhaltigkeit als Innovationstreiber und Wachstumsmotor - nion digital
200 yes 302 1
https://www.nion-digital.com/nion-next-2025/vortraege/thomas-schulz/
Zukunftsmedizin – Warum 100 die neuen 80 sind - nion digital
200 yes 294 1
https://www.nion-digital.com/jobs/agentic-engineer-w-m-d/
Agentic Engineer (w/m/d) - nion digital
200 yes 463 4
https://www.nion-digital.com/jobs/backend-engineer-w-m-d/
Backend Engineer (w/m/d) - nion digital
200 yes 541 4
https://www.nion-digital.com/jobs/cloud-architect-w-m-d/
Cloud Architect (w/m/d) - nion digital
200 yes 528 4
https://www.nion-digital.com/jobs/frontend-engineer-schwerpunkt-applikationen-w-m-d/
Frontend-Entwickler – Schwerpunkt Applikationen (w/m/d) - nion digital
200 yes 503 4
https://www.nion-digital.com/jobs/node-js-engineer-w-m-d/
Node.js Engineer (w/m/d) - nion digital
200 yes 547 4
https://www.nion-digital.com/jobs/react-native-engineer-w-m-d/
React Native Engineer (w/m/d) - nion digital
200 yes 526 4
https://www.nion-digital.com/benefits-fuer-mitarbeiter/
Unsere Benefits - nion digital
200 yes 176 6
https://www.nion-digital.com/empfehlungen/
Empfehlungen - nion digital
200 yes 806 4
https://www.nion-digital.com/events/claude-code-meetup-muenchen/
Claude Code Meetup in München - nion digital
200 yes 499 4
https://www.nion-digital.com/events/hike-for-impact/
Hike for Impact - nion digital
200 yes 534 3
https://www.nion-digital.com/events/knowledge/
nion digital GmbH
200 yes 306 3
https://www.nion-digital.com/ueber-uns/ki-grundsaetze/
KI Grundsätze - nion digital
200 yes 689 4
https://www.nion-digital.com/events/meetups/
nion digital GmbH
200 yes 231 1
https://www.nion-digital.com/events/muc-ki-meetup-muenchen/
Rückblick MUC.KI Meetup München - nion digital
200 yes 398 2
https://www.nion-digital.com/empfehlungen/buecher/
Buch-Tipps - nion digital
200 yes 2201 1
https://www.nion-digital.com/empfehlungen/podcasts/
Podcast-Empfehlungen - nion digital
200 yes 1139 1
https://www.nion-digital.com/empfehlungen/vortraege/
Interessante Vorträge - nion digital
200 yes 1438 1
https://www.nion-digital.com/services/design-systeme-entwicklung/
Implementierung von Designsystemen seit 2015 - nion digital
200 yes 693 1
https://www.nion-digital.com/nion-next-2025/masterclasses/david-hillmer/
Denken mit den Händen. Zuhören mit den Augen. - Lego® Serious Play® als Methode für Strategie- und Innovationsprozesse - nion digital
200 yes 481 0
https://www.nion-digital.com/nion-next-2025/masterclasses/stefan-barac-und-claudio-zeni/
Accessible Experience - nion digital
200 yes 513 0
https://www.nion-digital.com/nion-next-2025/masterclasses/thorsten-jonas/
Sustainable Digital Products - A Practical Guideline - nion digital
200 yes 678 0
https://www.nion-digital.com/empfehlungen/buecher/k%C3%A4ufers/dp/3987550643/ref=sr_1_1?crid=3Q16O3A3FQA5N&keywords=maurice+bork&qid=1700160644&sprefix=maurice+bork%2Caps%2C192&sr=8-1
410 – nion digital
410 no 89 1

Audit your own site — free

157 checks, internal PageRank, render-diff. No signup, results in ~30s.

Scan your site →