--- tool: Crawlinx SEO audit source: https://crawlinx.com domain: mdvonline.com report_url: "https://crawlinx.com/audit/mdvonline.com" crawl_id: 20260712T021016-7b50bddb health_score: 64 generated_at: 2026-08-26T03:09:18Z total_pages: 50 html_pages: 47 indexable_pages: 41 errors: 3 warnings: 273 notices: 377 --- # SEO audit: mdvonline.com **Health score: 64/100** — needs attention > Audited by [Crawlinx](https://crawlinx.com) — the free technical-SEO crawler. Full report: https://crawlinx.com/audit/mdvonline.com ## Overview | Metric | Value | | --- | --- | | Pages crawled | 50 | | HTML pages | 47 | | Indexable | 41 | | Non-indexable | 5 | | Orphan pages | 0 | | Broken internal links | 2 | | Avg response time | 957 ms | | Errors / Warnings / Notices | 3 / 273 / 377 | | Status codes | 49×200, 1×404 | ## Categories | Category | Score | Errors | Warnings | Notices | | --- | ---: | ---: | ---: | ---: | | Links | 69 | 2 | 45 | 62 | | Crawlability | 98 | 1 | 0 | 1 | | Agent Readiness | 72 | 0 | 46 | 57 | | Headings | 72 | 0 | 46 | 0 | | Images | 72 | 0 | 46 | 46 | | Canonical | 75 | 0 | 41 | 0 | | Content | 90 | 0 | 17 | 0 | | Meta Description | 92 | 0 | 13 | 1 | | Duplicate | 96 | 0 | 6 | 4 | | Hreflang | 97 | 0 | 5 | 0 | | Indexability | 97 | 0 | 5 | 0 | | Titles | 98 | 0 | 3 | 0 | | Cache | 100 | 0 | 0 | 44 | | Performance | 100 | 0 | 0 | 1 | | Security | 100 | 0 | 0 | 47 | | Social | 100 | 0 | 0 | 56 | | Structured Data | 100 | 0 | 0 | 41 | | URL | 100 | 0 | 0 | 17 | ## Issues ### Errors (3) #### Broken internal link (target 4xx/5xx) - Rule: `links.broken_internal` · Category: Links · Occurrences: 2 - [https://mdvonline.com/](https://mdvonline.com/) — https://mdvonline.com/en/Product/hovacal%C2%AE-gas-mixer-with-evaporator- (HTTP 404) - [https://mdvonline.com/en/category/flue-gasses](https://mdvonline.com/en/category/flue-gasses) — https://mdvonline.com/en/Product/hovacal%C2%AE-gas-mixer-with-evaporator- (HTTP 404) #### Client error (4xx) response - Rule: `status.4xx` · Category: Crawlability · Occurrences: 1 - [https://mdvonline.com/en/Product/hovacal%C2%AE-gas-mixer-with-evaporator-](https://mdvonline.com/en/Product/hovacal%C2%AE-gas-mixer-with-evaporator-) — HTTP 404 ### Warnings (273) #### Control has no accessible name - Rule: `agent.control_no_name` · Category: Agent Readiness · Occurrences: 46 - [https://mdvonline.com/](https://mdvonline.com/) — 6 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/de](https://mdvonline.com/de) — 6 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/de/newsitems](https://mdvonline.com/de/newsitems) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/de/page/product](https://mdvonline.com/de/page/product) — 1 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en](https://mdvonline.com/en) — 6 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/Product/carrying-rack-for-manual-setting-of-isokinetic-sampling-rate](https://mdvonline.com/en/Product/carrying-rack-for-manual-setting-of-isokinetic-sampling-rate) — 6 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/Product/digital-massflowmeters](https://mdvonline.com/en/Product/digital-massflowmeters) — 8 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/Product/heated-fid-analyser-j-u-m-3-300a](https://mdvonline.com/en/Product/heated-fid-analyser-j-u-m-3-300a) — 8 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/Product/jumatherm-temperature-controller](https://mdvonline.com/en/Product/jumatherm-temperature-controller) — 7 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/Product/refrigerant-valve-with-bluetooth-for-digital-refrigerant-scale-testo-560i](https://mdvonline.com/en/Product/refrigerant-valve-with-bluetooth-for-digital-refrigerant-scale-testo-560i) — 6 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/Product/small-drying-tower](https://mdvonline.com/en/Product/small-drying-tower) — 7 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/Product/testo-400-universal-air-flow-and-iaq-instrument](https://mdvonline.com/en/Product/testo-400-universal-air-flow-and-iaq-instrument) — 13 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/Product/testo-570s-digital-manifold-with-4-way-valve-block-bluetooth-and-intelligent-error-analysis](https://mdvonline.com/en/Product/testo-570s-digital-manifold-with-4-way-valve-block-bluetooth-and-intelligent-error-analysis) — 6 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/Product/vacuum-manometer-for-gas-meter](https://mdvonline.com/en/Product/vacuum-manometer-for-gas-meter) — 6 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big](https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big) — 6 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/category/dioxin-sampling](https://mdvonline.com/en/category/dioxin-sampling) — 12 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/category/filters](https://mdvonline.com/en/category/filters) — 11 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/category/flow-temperature](https://mdvonline.com/en/category/flow-temperature) — 195 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/category/flue-gasses](https://mdvonline.com/en/category/flue-gasses) — 93 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/category/immisson](https://mdvonline.com/en/category/immisson) — 13 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/category/isokinetic-sampling](https://mdvonline.com/en/category/isokinetic-sampling) — 63 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/category/other](https://mdvonline.com/en/category/other) — 22 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/category/peripheral-equipment](https://mdvonline.com/en/category/peripheral-equipment) — 139 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/category/personal-sampling](https://mdvonline.com/en/category/personal-sampling) — 34 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/category/promotions](https://mdvonline.com/en/category/promotions) — 1 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/category/single-parts](https://mdvonline.com/en/category/single-parts) — 152 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/category/tubing](https://mdvonline.com/en/category/tubing) — 16 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/category/workplace](https://mdvonline.com/en/category/workplace) — 6 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/newsitem/nieuw-custom-product](https://mdvonline.com/en/newsitem/nieuw-custom-product) — 1 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1](https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1) — 1 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/newsitem/testo-570s-digital-manifold](https://mdvonline.com/en/newsitem/testo-570s-digital-manifold) — 1 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/newsitems](https://mdvonline.com/en/newsitems) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/newsitems?&page_newsitems=1](https://mdvonline.com/en/newsitems?&page_newsitems=1) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/page/about-us](https://mdvonline.com/en/page/about-us) — 1 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/page/contact-us](https://mdvonline.com/en/page/contact-us) — 1 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/page/disclaimer](https://mdvonline.com/en/page/disclaimer) — 1 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/page/product](https://mdvonline.com/en/page/product) — 1 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/page/service](https://mdvonline.com/en/page/service) — 1 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/en/page/terms](https://mdvonline.com/en/page/terms) — 1 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/fr](https://mdvonline.com/fr) — 6 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/fr/newsitems](https://mdvonline.com/fr/newsitems) — 2 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/fr/page/product](https://mdvonline.com/fr/page/product) — 1 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/nl](https://mdvonline.com/nl) — 6 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/nl/newsitems](https://mdvonline.com/nl/newsitems) — 1 button/link(s) with no text or aria-label — an agent can't target them - [https://mdvonline.com/nl/page/product](https://mdvonline.com/nl/page/product) — 1 button/link(s) with no text or aria-label — an agent can't target them - [https://www.mdvonline.com/en/Product/pme-sonde-volgens-en-1650-1-annex-f](https://www.mdvonline.com/en/Product/pme-sonde-volgens-en-1650-1-annex-f) — 9 button/link(s) with no text or aria-label — an agent can't target them #### Missing canonical tag - Rule: `canonical.missing` · Category: Canonical · Occurrences: 41 - [https://mdvonline.com/](https://mdvonline.com/) - [https://mdvonline.com/de](https://mdvonline.com/de) - [https://mdvonline.com/de/page/product](https://mdvonline.com/de/page/product) - [https://mdvonline.com/en](https://mdvonline.com/en) - [https://mdvonline.com/en/Product/carrying-rack-for-manual-setting-of-isokinetic-sampling-rate](https://mdvonline.com/en/Product/carrying-rack-for-manual-setting-of-isokinetic-sampling-rate) - [https://mdvonline.com/en/Product/digital-massflowmeters](https://mdvonline.com/en/Product/digital-massflowmeters) - [https://mdvonline.com/en/Product/heated-fid-analyser-j-u-m-3-300a](https://mdvonline.com/en/Product/heated-fid-analyser-j-u-m-3-300a) - [https://mdvonline.com/en/Product/jumatherm-temperature-controller](https://mdvonline.com/en/Product/jumatherm-temperature-controller) - [https://mdvonline.com/en/Product/refrigerant-valve-with-bluetooth-for-digital-refrigerant-scale-testo-560i](https://mdvonline.com/en/Product/refrigerant-valve-with-bluetooth-for-digital-refrigerant-scale-testo-560i) - [https://mdvonline.com/en/Product/small-drying-tower](https://mdvonline.com/en/Product/small-drying-tower) - [https://mdvonline.com/en/Product/testo-400-universal-air-flow-and-iaq-instrument](https://mdvonline.com/en/Product/testo-400-universal-air-flow-and-iaq-instrument) - [https://mdvonline.com/en/Product/testo-570s-digital-manifold-with-4-way-valve-block-bluetooth-and-intelligent-error-analysis](https://mdvonline.com/en/Product/testo-570s-digital-manifold-with-4-way-valve-block-bluetooth-and-intelligent-error-analysis) - [https://mdvonline.com/en/Product/vacuum-manometer-for-gas-meter](https://mdvonline.com/en/Product/vacuum-manometer-for-gas-meter) - [https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big](https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big) - [https://mdvonline.com/en/category/dioxin-sampling](https://mdvonline.com/en/category/dioxin-sampling) - [https://mdvonline.com/en/category/filters](https://mdvonline.com/en/category/filters) - [https://mdvonline.com/en/category/flow-temperature](https://mdvonline.com/en/category/flow-temperature) - [https://mdvonline.com/en/category/flue-gasses](https://mdvonline.com/en/category/flue-gasses) - [https://mdvonline.com/en/category/immisson](https://mdvonline.com/en/category/immisson) - [https://mdvonline.com/en/category/isokinetic-sampling](https://mdvonline.com/en/category/isokinetic-sampling) - [https://mdvonline.com/en/category/other](https://mdvonline.com/en/category/other) - [https://mdvonline.com/en/category/peripheral-equipment](https://mdvonline.com/en/category/peripheral-equipment) - [https://mdvonline.com/en/category/personal-sampling](https://mdvonline.com/en/category/personal-sampling) - [https://mdvonline.com/en/category/promotions](https://mdvonline.com/en/category/promotions) - [https://mdvonline.com/en/category/single-parts](https://mdvonline.com/en/category/single-parts) - [https://mdvonline.com/en/category/tubing](https://mdvonline.com/en/category/tubing) - [https://mdvonline.com/en/category/workplace](https://mdvonline.com/en/category/workplace) - [https://mdvonline.com/en/newsitem/nieuw-custom-product](https://mdvonline.com/en/newsitem/nieuw-custom-product) - [https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1](https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1) - [https://mdvonline.com/en/newsitem/testo-570s-digital-manifold](https://mdvonline.com/en/newsitem/testo-570s-digital-manifold) - [https://mdvonline.com/en/page/about-us](https://mdvonline.com/en/page/about-us) - [https://mdvonline.com/en/page/contact-us](https://mdvonline.com/en/page/contact-us) - [https://mdvonline.com/en/page/disclaimer](https://mdvonline.com/en/page/disclaimer) - [https://mdvonline.com/en/page/product](https://mdvonline.com/en/page/product) - [https://mdvonline.com/en/page/service](https://mdvonline.com/en/page/service) - [https://mdvonline.com/en/page/terms](https://mdvonline.com/en/page/terms) - [https://mdvonline.com/fr](https://mdvonline.com/fr) - [https://mdvonline.com/fr/page/product](https://mdvonline.com/fr/page/product) - [https://mdvonline.com/nl](https://mdvonline.com/nl) - [https://mdvonline.com/nl/page/product](https://mdvonline.com/nl/page/product) - [https://www.mdvonline.com/en/Product/pme-sonde-volgens-en-1650-1-annex-f](https://www.mdvonline.com/en/Product/pme-sonde-volgens-en-1650-1-annex-f) #### Thin content (low word count) - Rule: `content.thin` · Category: Content · Occurrences: 17 - [https://mdvonline.com/de/page/product](https://mdvonline.com/de/page/product) — 95 words - [https://mdvonline.com/en/Product/carrying-rack-for-manual-setting-of-isokinetic-sampling-rate](https://mdvonline.com/en/Product/carrying-rack-for-manual-setting-of-isokinetic-sampling-rate) — 149 words - [https://mdvonline.com/en/Product/small-drying-tower](https://mdvonline.com/en/Product/small-drying-tower) — 114 words - [https://mdvonline.com/en/Product/vacuum-manometer-for-gas-meter](https://mdvonline.com/en/Product/vacuum-manometer-for-gas-meter) — 93 words - [https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big](https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big) — 88 words - [https://mdvonline.com/en/category/immisson](https://mdvonline.com/en/category/immisson) — 116 words - [https://mdvonline.com/en/category/promotions](https://mdvonline.com/en/category/promotions) — 51 words - [https://mdvonline.com/en/category/workplace](https://mdvonline.com/en/category/workplace) — 122 words - [https://mdvonline.com/en/newsitem/nieuw-custom-product](https://mdvonline.com/en/newsitem/nieuw-custom-product) — 37 words - [https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1](https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1) — 35 words - [https://mdvonline.com/en/newsitem/testo-570s-digital-manifold](https://mdvonline.com/en/newsitem/testo-570s-digital-manifold) — 55 words - [https://mdvonline.com/en/page/about-us](https://mdvonline.com/en/page/about-us) — 101 words - [https://mdvonline.com/en/page/contact-us](https://mdvonline.com/en/page/contact-us) — 123 words - [https://mdvonline.com/en/page/product](https://mdvonline.com/en/page/product) — 117 words - [https://mdvonline.com/fr/page/product](https://mdvonline.com/fr/page/product) — 129 words - [https://mdvonline.com/nl/page/product](https://mdvonline.com/nl/page/product) — 102 words - [https://www.mdvonline.com/en/Product/pme-sonde-volgens-en-1650-1-annex-f](https://www.mdvonline.com/en/Product/pme-sonde-volgens-en-1650-1-annex-f) — 189 words #### Duplicate page content - Rule: `duplicate.content` · Category: Duplicate · Occurrences: 2 - [https://mdvonline.com/](https://mdvonline.com/) — content shared by 2 pages: https://mdvonline.com/en - [https://mdvonline.com/en](https://mdvonline.com/en) — content shared by 2 pages: https://mdvonline.com/ #### Duplicate across pages - Rule: `duplicate.title` · Category: Duplicate · Occurrences: 4 - [https://mdvonline.com/](https://mdvonline.com/) — title shared by 2 pages: https://mdvonline.com/en - [https://mdvonline.com/en](https://mdvonline.com/en) — title shared by 2 pages: https://mdvonline.com/ - [https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1](https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1) — title shared by 2 pages: https://www.mdvonline.com/en/Product/pme-sonde-volgens-en-1650-1-annex-f - [https://www.mdvonline.com/en/Product/pme-sonde-volgens-en-1650-1-annex-f](https://www.mdvonline.com/en/Product/pme-sonde-volgens-en-1650-1-annex-f) — title shared by 2 pages: https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1 #### Missing <h1> - Rule: `h1.missing` · Category: Headings · Occurrences: 46 - [https://mdvonline.com/](https://mdvonline.com/) - [https://mdvonline.com/de](https://mdvonline.com/de) - [https://mdvonline.com/de/newsitems](https://mdvonline.com/de/newsitems) - [https://mdvonline.com/de/page/product](https://mdvonline.com/de/page/product) - [https://mdvonline.com/en](https://mdvonline.com/en) - [https://mdvonline.com/en/Product/carrying-rack-for-manual-setting-of-isokinetic-sampling-rate](https://mdvonline.com/en/Product/carrying-rack-for-manual-setting-of-isokinetic-sampling-rate) - [https://mdvonline.com/en/Product/digital-massflowmeters](https://mdvonline.com/en/Product/digital-massflowmeters) - [https://mdvonline.com/en/Product/heated-fid-analyser-j-u-m-3-300a](https://mdvonline.com/en/Product/heated-fid-analyser-j-u-m-3-300a) - [https://mdvonline.com/en/Product/jumatherm-temperature-controller](https://mdvonline.com/en/Product/jumatherm-temperature-controller) - [https://mdvonline.com/en/Product/refrigerant-valve-with-bluetooth-for-digital-refrigerant-scale-testo-560i](https://mdvonline.com/en/Product/refrigerant-valve-with-bluetooth-for-digital-refrigerant-scale-testo-560i) - [https://mdvonline.com/en/Product/small-drying-tower](https://mdvonline.com/en/Product/small-drying-tower) - [https://mdvonline.com/en/Product/testo-400-universal-air-flow-and-iaq-instrument](https://mdvonline.com/en/Product/testo-400-universal-air-flow-and-iaq-instrument) - [https://mdvonline.com/en/Product/testo-570s-digital-manifold-with-4-way-valve-block-bluetooth-and-intelligent-error-analysis](https://mdvonline.com/en/Product/testo-570s-digital-manifold-with-4-way-valve-block-bluetooth-and-intelligent-error-analysis) - [https://mdvonline.com/en/Product/vacuum-manometer-for-gas-meter](https://mdvonline.com/en/Product/vacuum-manometer-for-gas-meter) - [https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big](https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big) - [https://mdvonline.com/en/category/dioxin-sampling](https://mdvonline.com/en/category/dioxin-sampling) - [https://mdvonline.com/en/category/filters](https://mdvonline.com/en/category/filters) - [https://mdvonline.com/en/category/flow-temperature](https://mdvonline.com/en/category/flow-temperature) - [https://mdvonline.com/en/category/flue-gasses](https://mdvonline.com/en/category/flue-gasses) - [https://mdvonline.com/en/category/immisson](https://mdvonline.com/en/category/immisson) - [https://mdvonline.com/en/category/isokinetic-sampling](https://mdvonline.com/en/category/isokinetic-sampling) - [https://mdvonline.com/en/category/other](https://mdvonline.com/en/category/other) - [https://mdvonline.com/en/category/peripheral-equipment](https://mdvonline.com/en/category/peripheral-equipment) - [https://mdvonline.com/en/category/personal-sampling](https://mdvonline.com/en/category/personal-sampling) - [https://mdvonline.com/en/category/promotions](https://mdvonline.com/en/category/promotions) - [https://mdvonline.com/en/category/single-parts](https://mdvonline.com/en/category/single-parts) - [https://mdvonline.com/en/category/tubing](https://mdvonline.com/en/category/tubing) - [https://mdvonline.com/en/category/workplace](https://mdvonline.com/en/category/workplace) - [https://mdvonline.com/en/newsitem/nieuw-custom-product](https://mdvonline.com/en/newsitem/nieuw-custom-product) - 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[https://mdvonline.com/en/Product/digital-massflowmeters](https://mdvonline.com/en/Product/digital-massflowmeters) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/Product/heated-fid-analyser-j-u-m-3-300a](https://mdvonline.com/en/Product/heated-fid-analyser-j-u-m-3-300a) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/Product/jumatherm-temperature-controller](https://mdvonline.com/en/Product/jumatherm-temperature-controller) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/Product/refrigerant-valve-with-bluetooth-for-digital-refrigerant-scale-testo-560i](https://mdvonline.com/en/Product/refrigerant-valve-with-bluetooth-for-digital-refrigerant-scale-testo-560i) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/Product/small-drying-tower](https://mdvonline.com/en/Product/small-drying-tower) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/Product/testo-400-universal-air-flow-and-iaq-instrument](https://mdvonline.com/en/Product/testo-400-universal-air-flow-and-iaq-instrument) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/Product/testo-570s-digital-manifold-with-4-way-valve-block-bluetooth-and-intelligent-error-analysis](https://mdvonline.com/en/Product/testo-570s-digital-manifold-with-4-way-valve-block-bluetooth-and-intelligent-error-analysis) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/Product/vacuum-manometer-for-gas-meter](https://mdvonline.com/en/Product/vacuum-manometer-for-gas-meter) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big](https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/category/dioxin-sampling](https://mdvonline.com/en/category/dioxin-sampling) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/category/filters](https://mdvonline.com/en/category/filters) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/category/flow-temperature](https://mdvonline.com/en/category/flow-temperature) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/category/flue-gasses](https://mdvonline.com/en/category/flue-gasses) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/category/immisson](https://mdvonline.com/en/category/immisson) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/category/isokinetic-sampling](https://mdvonline.com/en/category/isokinetic-sampling) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/category/other](https://mdvonline.com/en/category/other) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/category/peripheral-equipment](https://mdvonline.com/en/category/peripheral-equipment) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/category/personal-sampling](https://mdvonline.com/en/category/personal-sampling) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/category/promotions](https://mdvonline.com/en/category/promotions) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/category/single-parts](https://mdvonline.com/en/category/single-parts) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/category/tubing](https://mdvonline.com/en/category/tubing) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/category/workplace](https://mdvonline.com/en/category/workplace) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/newsitem/nieuw-custom-product](https://mdvonline.com/en/newsitem/nieuw-custom-product) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1](https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/newsitem/testo-570s-digital-manifold](https://mdvonline.com/en/newsitem/testo-570s-digital-manifold) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/newsitems](https://mdvonline.com/en/newsitems) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/newsitems?&page_newsitems=1](https://mdvonline.com/en/newsitems?&page_newsitems=1) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/page/about-us](https://mdvonline.com/en/page/about-us) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/page/contact-us](https://mdvonline.com/en/page/contact-us) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/page/disclaimer](https://mdvonline.com/en/page/disclaimer) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/page/product](https://mdvonline.com/en/page/product) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/page/service](https://mdvonline.com/en/page/service) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/en/page/terms](https://mdvonline.com/en/page/terms) — https://mdvonline.com/ → https://mdvonline.com/en - [https://mdvonline.com/fr](https://mdvonline.com/fr) — https://mdvonline.com/ → https://mdvonline.com/en - 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[https://mdvonline.com/en/newsitems](https://mdvonline.com/en/newsitems) — role="content" is not a valid ARIA role - [https://mdvonline.com/en/newsitems?&page_newsitems=1](https://mdvonline.com/en/newsitems?&page_newsitems=1) — role="content" is not a valid ARIA role - [https://mdvonline.com/en/page/disclaimer](https://mdvonline.com/en/page/disclaimer) — role="content" is not a valid ARIA role - [https://mdvonline.com/fr/newsitems](https://mdvonline.com/fr/newsitems) — role="content" is not a valid ARIA role - [https://mdvonline.com/nl/newsitems](https://mdvonline.com/nl/newsitems) — role="content" is not a valid ARIA role #### Heading levels skip a level - Rule: `agent.heading_skip` · Category: Agent Readiness · Occurrences: 6 - [https://mdvonline.com/](https://mdvonline.com/) — h5 follows h3 — skips h4 - [https://mdvonline.com/de](https://mdvonline.com/de) — h5 follows h3 — skips h4 - [https://mdvonline.com/en](https://mdvonline.com/en) — h5 follows h3 — skips h4 - [https://mdvonline.com/en/page/disclaimer](https://mdvonline.com/en/page/disclaimer) — h6 follows h2 — skips h3 - [https://mdvonline.com/fr](https://mdvonline.com/fr) — h5 follows h3 — skips h4 - [https://mdvonline.com/nl](https://mdvonline.com/nl) — h5 follows h3 — skips h4 #### No llms.txt for AI agents - Rule: `agent.llms_txt_missing` · Category: Agent Readiness · Occurrences: 1 - [https://mdvonline.com/](https://mdvonline.com/) — no llms.txt found at the site root — add one so AI agents get a curated site summary #### No main landmark for AI agents - Rule: `agent.no_main_landmark` · Category: Agent Readiness · Occurrences: 44 - [https://mdvonline.com/](https://mdvonline.com/) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/de](https://mdvonline.com/de) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/de/newsitems](https://mdvonline.com/de/newsitems) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/de/page/product](https://mdvonline.com/de/page/product) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en](https://mdvonline.com/en) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/Product/carrying-rack-for-manual-setting-of-isokinetic-sampling-rate](https://mdvonline.com/en/Product/carrying-rack-for-manual-setting-of-isokinetic-sampling-rate) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/Product/digital-massflowmeters](https://mdvonline.com/en/Product/digital-massflowmeters) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/Product/heated-fid-analyser-j-u-m-3-300a](https://mdvonline.com/en/Product/heated-fid-analyser-j-u-m-3-300a) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/Product/jumatherm-temperature-controller](https://mdvonline.com/en/Product/jumatherm-temperature-controller) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/Product/refrigerant-valve-with-bluetooth-for-digital-refrigerant-scale-testo-560i](https://mdvonline.com/en/Product/refrigerant-valve-with-bluetooth-for-digital-refrigerant-scale-testo-560i) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/Product/small-drying-tower](https://mdvonline.com/en/Product/small-drying-tower) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/Product/testo-400-universal-air-flow-and-iaq-instrument](https://mdvonline.com/en/Product/testo-400-universal-air-flow-and-iaq-instrument) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/Product/testo-570s-digital-manifold-with-4-way-valve-block-bluetooth-and-intelligent-error-analysis](https://mdvonline.com/en/Product/testo-570s-digital-manifold-with-4-way-valve-block-bluetooth-and-intelligent-error-analysis) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/Product/vacuum-manometer-for-gas-meter](https://mdvonline.com/en/Product/vacuum-manometer-for-gas-meter) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big](https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/category/dioxin-sampling](https://mdvonline.com/en/category/dioxin-sampling) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/category/filters](https://mdvonline.com/en/category/filters) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/category/flow-temperature](https://mdvonline.com/en/category/flow-temperature) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/category/flue-gasses](https://mdvonline.com/en/category/flue-gasses) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/category/immisson](https://mdvonline.com/en/category/immisson) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/category/isokinetic-sampling](https://mdvonline.com/en/category/isokinetic-sampling) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/category/other](https://mdvonline.com/en/category/other) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/category/peripheral-equipment](https://mdvonline.com/en/category/peripheral-equipment) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/category/personal-sampling](https://mdvonline.com/en/category/personal-sampling) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/category/promotions](https://mdvonline.com/en/category/promotions) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/category/single-parts](https://mdvonline.com/en/category/single-parts) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/category/tubing](https://mdvonline.com/en/category/tubing) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/category/workplace](https://mdvonline.com/en/category/workplace) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/newsitem/testo-570s-digital-manifold](https://mdvonline.com/en/newsitem/testo-570s-digital-manifold) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/newsitems](https://mdvonline.com/en/newsitems) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/newsitems?&page_newsitems=1](https://mdvonline.com/en/newsitems?&page_newsitems=1) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/page/about-us](https://mdvonline.com/en/page/about-us) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/page/contact-us](https://mdvonline.com/en/page/contact-us) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/page/disclaimer](https://mdvonline.com/en/page/disclaimer) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/page/product](https://mdvonline.com/en/page/product) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/page/service](https://mdvonline.com/en/page/service) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/en/page/terms](https://mdvonline.com/en/page/terms) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/fr](https://mdvonline.com/fr) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/fr/newsitems](https://mdvonline.com/fr/newsitems) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/fr/page/product](https://mdvonline.com/fr/page/product) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/nl](https://mdvonline.com/nl) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/nl/newsitems](https://mdvonline.com/nl/newsitems) — add a <main> element (or role=main) around the primary content - [https://mdvonline.com/nl/page/product](https://mdvonline.com/nl/page/product) — add a <main> element (or role=main) around the primary content - [https://www.mdvonline.com/en/Product/pme-sonde-volgens-en-1650-1-annex-f](https://www.mdvonline.com/en/Product/pme-sonde-volgens-en-1650-1-annex-f) — add a <main> element (or role=main) around the primary content #### Page served uncached (no-store/private or CDN bypass) - 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[https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big](https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big) — Cache-Control: private - [https://mdvonline.com/en/category/dioxin-sampling](https://mdvonline.com/en/category/dioxin-sampling) — Cache-Control: private - [https://mdvonline.com/en/category/filters](https://mdvonline.com/en/category/filters) — Cache-Control: private - [https://mdvonline.com/en/category/flow-temperature](https://mdvonline.com/en/category/flow-temperature) — Cache-Control: private - [https://mdvonline.com/en/category/flue-gasses](https://mdvonline.com/en/category/flue-gasses) — Cache-Control: private - [https://mdvonline.com/en/category/immisson](https://mdvonline.com/en/category/immisson) — Cache-Control: private - [https://mdvonline.com/en/category/isokinetic-sampling](https://mdvonline.com/en/category/isokinetic-sampling) — Cache-Control: private - [https://mdvonline.com/en/category/other](https://mdvonline.com/en/category/other) — Cache-Control: private - [https://mdvonline.com/en/category/peripheral-equipment](https://mdvonline.com/en/category/peripheral-equipment) — Cache-Control: private - [https://mdvonline.com/en/category/personal-sampling](https://mdvonline.com/en/category/personal-sampling) — Cache-Control: private - [https://mdvonline.com/en/category/promotions](https://mdvonline.com/en/category/promotions) — Cache-Control: private - [https://mdvonline.com/en/category/single-parts](https://mdvonline.com/en/category/single-parts) — Cache-Control: private - [https://mdvonline.com/en/category/tubing](https://mdvonline.com/en/category/tubing) — Cache-Control: private - [https://mdvonline.com/en/category/workplace](https://mdvonline.com/en/category/workplace) — Cache-Control: private - [https://mdvonline.com/en/newsitem/nieuw-custom-product](https://mdvonline.com/en/newsitem/nieuw-custom-product) — Cache-Control: private - [https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1](https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1) — Cache-Control: private - [https://mdvonline.com/en/newsitem/testo-570s-digital-manifold](https://mdvonline.com/en/newsitem/testo-570s-digital-manifold) — Cache-Control: private - [https://mdvonline.com/en/newsitems](https://mdvonline.com/en/newsitems) — Cache-Control: private - [https://mdvonline.com/en/newsitems?&page_newsitems=1](https://mdvonline.com/en/newsitems?&page_newsitems=1) — Cache-Control: private - [https://mdvonline.com/en/page/about-us](https://mdvonline.com/en/page/about-us) — Cache-Control: private - [https://mdvonline.com/en/page/contact-us](https://mdvonline.com/en/page/contact-us) — Cache-Control: private - [https://mdvonline.com/en/page/disclaimer](https://mdvonline.com/en/page/disclaimer) — Cache-Control: private - [https://mdvonline.com/en/page/product](https://mdvonline.com/en/page/product) — Cache-Control: private - [https://mdvonline.com/en/page/service](https://mdvonline.com/en/page/service) — Cache-Control: private - [https://mdvonline.com/en/page/terms](https://mdvonline.com/en/page/terms) — Cache-Control: private - [https://mdvonline.com/fr](https://mdvonline.com/fr) — Cache-Control: private - [https://mdvonline.com/fr/newsitems](https://mdvonline.com/fr/newsitems) — Cache-Control: private - [https://mdvonline.com/fr/page/product](https://mdvonline.com/fr/page/product) — Cache-Control: private - [https://mdvonline.com/nl](https://mdvonline.com/nl) — Cache-Control: private - [https://mdvonline.com/nl/newsitems](https://mdvonline.com/nl/newsitems) — Cache-Control: private - [https://mdvonline.com/nl/page/product](https://mdvonline.com/nl/page/product) — Cache-Control: private #### Duplicate meta description across pages - Rule: `duplicate.meta_desc` · Category: Duplicate · Occurrences: 4 - [https://mdvonline.com/](https://mdvonline.com/) — meta description shared by 2 pages: https://mdvonline.com/en - [https://mdvonline.com/en](https://mdvonline.com/en) — meta description shared by 2 pages: https://mdvonline.com/ - [https://mdvonline.com/en/page/disclaimer](https://mdvonline.com/en/page/disclaimer) — meta description shared by 2 pages: https://mdvonline.com/en/page/terms - [https://mdvonline.com/en/page/terms](https://mdvonline.com/en/page/terms) — meta description shared by 2 pages: https://mdvonline.com/en/page/disclaimer #### Images without width/height (layout shift / CLS) - Rule: `images.missing_dimensions` · Category: Images · Occurrences: 46 - [https://mdvonline.com/](https://mdvonline.com/) — 15 of 15 images without width/height - [https://mdvonline.com/de](https://mdvonline.com/de) — 15 of 15 images without width/height - [https://mdvonline.com/de/newsitems](https://mdvonline.com/de/newsitems) — 11 of 11 images without width/height - [https://mdvonline.com/de/page/product](https://mdvonline.com/de/page/product) — 1 of 1 images without width/height - [https://mdvonline.com/en](https://mdvonline.com/en) — 15 of 15 images without width/height - [https://mdvonline.com/en/Product/carrying-rack-for-manual-setting-of-isokinetic-sampling-rate](https://mdvonline.com/en/Product/carrying-rack-for-manual-setting-of-isokinetic-sampling-rate) — 2 of 2 images without width/height - 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[https://mdvonline.com/en/Product/testo-570s-digital-manifold-with-4-way-valve-block-bluetooth-and-intelligent-error-analysis](https://mdvonline.com/en/Product/testo-570s-digital-manifold-with-4-way-valve-block-bluetooth-and-intelligent-error-analysis) — 2 of 2 images without width/height - [https://mdvonline.com/en/Product/vacuum-manometer-for-gas-meter](https://mdvonline.com/en/Product/vacuum-manometer-for-gas-meter) — 2 of 2 images without width/height - [https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big](https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big) — 2 of 2 images without width/height - [https://mdvonline.com/en/category/dioxin-sampling](https://mdvonline.com/en/category/dioxin-sampling) — 4 of 4 images without width/height - [https://mdvonline.com/en/category/filters](https://mdvonline.com/en/category/filters) — 3 of 3 images without width/height - [https://mdvonline.com/en/category/flow-temperature](https://mdvonline.com/en/category/flow-temperature) — 79 of 79 images without width/height - [https://mdvonline.com/en/category/flue-gasses](https://mdvonline.com/en/category/flue-gasses) — 35 of 35 images without width/height - [https://mdvonline.com/en/category/immisson](https://mdvonline.com/en/category/immisson) — 5 of 5 images without width/height - [https://mdvonline.com/en/category/isokinetic-sampling](https://mdvonline.com/en/category/isokinetic-sampling) — 31 of 31 images without width/height - [https://mdvonline.com/en/category/other](https://mdvonline.com/en/category/other) — 6 of 6 images without width/height - [https://mdvonline.com/en/category/peripheral-equipment](https://mdvonline.com/en/category/peripheral-equipment) — 46 of 46 images without width/height - [https://mdvonline.com/en/category/personal-sampling](https://mdvonline.com/en/category/personal-sampling) — 10 of 10 images without width/height - [https://mdvonline.com/en/category/promotions](https://mdvonline.com/en/category/promotions) — 1 of 1 images without width/height - [https://mdvonline.com/en/category/single-parts](https://mdvonline.com/en/category/single-parts) — 52 of 52 images without width/height - [https://mdvonline.com/en/category/tubing](https://mdvonline.com/en/category/tubing) — 4 of 4 images without width/height - [https://mdvonline.com/en/category/workplace](https://mdvonline.com/en/category/workplace) — 2 of 2 images without width/height - [https://mdvonline.com/en/newsitem/nieuw-custom-product](https://mdvonline.com/en/newsitem/nieuw-custom-product) — 2 of 2 images without width/height - [https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1](https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1) — 2 of 2 images without width/height - [https://mdvonline.com/en/newsitem/testo-570s-digital-manifold](https://mdvonline.com/en/newsitem/testo-570s-digital-manifold) — 2 of 2 images without width/height - [https://mdvonline.com/en/newsitems](https://mdvonline.com/en/newsitems) — 11 of 11 images without width/height - [https://mdvonline.com/en/newsitems?&page_newsitems=1](https://mdvonline.com/en/newsitems?&page_newsitems=1) — 11 of 11 images without width/height - 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[https://mdvonline.com/en/category/single-parts](https://mdvonline.com/en/category/single-parts) — X-Content-Type-Options, HSTS, CSP - [https://mdvonline.com/en/category/tubing](https://mdvonline.com/en/category/tubing) — HSTS, CSP, X-Content-Type-Options - [https://mdvonline.com/en/category/workplace](https://mdvonline.com/en/category/workplace) — HSTS, CSP, X-Content-Type-Options - [https://mdvonline.com/en/newsitem/nieuw-custom-product](https://mdvonline.com/en/newsitem/nieuw-custom-product) — HSTS, CSP, X-Content-Type-Options - [https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1](https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1) — HSTS, CSP, X-Content-Type-Options - [https://mdvonline.com/en/newsitem/testo-570s-digital-manifold](https://mdvonline.com/en/newsitem/testo-570s-digital-manifold) — HSTS, CSP, X-Content-Type-Options - [https://mdvonline.com/en/newsitems](https://mdvonline.com/en/newsitems) — HSTS, CSP, X-Content-Type-Options - [https://mdvonline.com/en/newsitems?&page_newsitems=1](https://mdvonline.com/en/newsitems?&page_newsitems=1) — HSTS, CSP, X-Content-Type-Options - [https://mdvonline.com/en/page/about-us](https://mdvonline.com/en/page/about-us) — HSTS, CSP, X-Content-Type-Options - [https://mdvonline.com/en/page/contact-us](https://mdvonline.com/en/page/contact-us) — CSP, X-Content-Type-Options, HSTS - [https://mdvonline.com/en/page/disclaimer](https://mdvonline.com/en/page/disclaimer) — HSTS, CSP, X-Content-Type-Options - [https://mdvonline.com/en/page/product](https://mdvonline.com/en/page/product) — CSP, X-Content-Type-Options, HSTS - [https://mdvonline.com/en/page/service](https://mdvonline.com/en/page/service) — HSTS, CSP, X-Content-Type-Options - [https://mdvonline.com/en/page/terms](https://mdvonline.com/en/page/terms) — HSTS, CSP, X-Content-Type-Options - [https://mdvonline.com/fr](https://mdvonline.com/fr) — HSTS, CSP, X-Content-Type-Options - [https://mdvonline.com/fr/newsitems](https://mdvonline.com/fr/newsitems) — HSTS, CSP, X-Content-Type-Options - [https://mdvonline.com/fr/page/product](https://mdvonline.com/fr/page/product) — HSTS, CSP, X-Content-Type-Options - [https://mdvonline.com/nl](https://mdvonline.com/nl) — X-Content-Type-Options, HSTS, CSP - [https://mdvonline.com/nl/newsitems](https://mdvonline.com/nl/newsitems) — HSTS, CSP, X-Content-Type-Options - [https://mdvonline.com/nl/page/product](https://mdvonline.com/nl/page/product) — HSTS, CSP, X-Content-Type-Options - [https://www.mdvonline.com/en/Product/pme-sonde-volgens-en-1650-1-annex-f](https://www.mdvonline.com/en/Product/pme-sonde-volgens-en-1650-1-annex-f) — HSTS, CSP, X-Content-Type-Options #### Missing Twitter Card tag - Rule: `twitter.missing` · Category: Social · Occurrences: 41 - [https://mdvonline.com/](https://mdvonline.com/) - [https://mdvonline.com/de](https://mdvonline.com/de) - [https://mdvonline.com/de/page/product](https://mdvonline.com/de/page/product) - [https://mdvonline.com/en](https://mdvonline.com/en) - [https://mdvonline.com/en/Product/carrying-rack-for-manual-setting-of-isokinetic-sampling-rate](https://mdvonline.com/en/Product/carrying-rack-for-manual-setting-of-isokinetic-sampling-rate) - [https://mdvonline.com/en/Product/digital-massflowmeters](https://mdvonline.com/en/Product/digital-massflowmeters) - [https://mdvonline.com/en/Product/heated-fid-analyser-j-u-m-3-300a](https://mdvonline.com/en/Product/heated-fid-analyser-j-u-m-3-300a) - [https://mdvonline.com/en/Product/jumatherm-temperature-controller](https://mdvonline.com/en/Product/jumatherm-temperature-controller) - [https://mdvonline.com/en/Product/refrigerant-valve-with-bluetooth-for-digital-refrigerant-scale-testo-560i](https://mdvonline.com/en/Product/refrigerant-valve-with-bluetooth-for-digital-refrigerant-scale-testo-560i) - [https://mdvonline.com/en/Product/small-drying-tower](https://mdvonline.com/en/Product/small-drying-tower) - [https://mdvonline.com/en/Product/testo-400-universal-air-flow-and-iaq-instrument](https://mdvonline.com/en/Product/testo-400-universal-air-flow-and-iaq-instrument) - [https://mdvonline.com/en/Product/testo-570s-digital-manifold-with-4-way-valve-block-bluetooth-and-intelligent-error-analysis](https://mdvonline.com/en/Product/testo-570s-digital-manifold-with-4-way-valve-block-bluetooth-and-intelligent-error-analysis) - [https://mdvonline.com/en/Product/vacuum-manometer-for-gas-meter](https://mdvonline.com/en/Product/vacuum-manometer-for-gas-meter) - [https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big](https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big) - [https://mdvonline.com/en/category/dioxin-sampling](https://mdvonline.com/en/category/dioxin-sampling) - [https://mdvonline.com/en/category/filters](https://mdvonline.com/en/category/filters) - [https://mdvonline.com/en/category/flow-temperature](https://mdvonline.com/en/category/flow-temperature) - [https://mdvonline.com/en/category/flue-gasses](https://mdvonline.com/en/category/flue-gasses) - [https://mdvonline.com/en/category/immisson](https://mdvonline.com/en/category/immisson) - [https://mdvonline.com/en/category/isokinetic-sampling](https://mdvonline.com/en/category/isokinetic-sampling) - [https://mdvonline.com/en/category/other](https://mdvonline.com/en/category/other) - [https://mdvonline.com/en/category/peripheral-equipment](https://mdvonline.com/en/category/peripheral-equipment) - [https://mdvonline.com/en/category/personal-sampling](https://mdvonline.com/en/category/personal-sampling) - [https://mdvonline.com/en/category/promotions](https://mdvonline.com/en/category/promotions) - [https://mdvonline.com/en/category/single-parts](https://mdvonline.com/en/category/single-parts) - [https://mdvonline.com/en/category/tubing](https://mdvonline.com/en/category/tubing) - [https://mdvonline.com/en/category/workplace](https://mdvonline.com/en/category/workplace) - [https://mdvonline.com/en/newsitem/nieuw-custom-product](https://mdvonline.com/en/newsitem/nieuw-custom-product) - [https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1](https://mdvonline.com/en/newsitem/pme-probe-according-to-en-1650-1) - [https://mdvonline.com/en/newsitem/testo-570s-digital-manifold](https://mdvonline.com/en/newsitem/testo-570s-digital-manifold) - [https://mdvonline.com/en/page/about-us](https://mdvonline.com/en/page/about-us) - [https://mdvonline.com/en/page/contact-us](https://mdvonline.com/en/page/contact-us) - [https://mdvonline.com/en/page/disclaimer](https://mdvonline.com/en/page/disclaimer) - [https://mdvonline.com/en/page/product](https://mdvonline.com/en/page/product) - [https://mdvonline.com/en/page/service](https://mdvonline.com/en/page/service) - [https://mdvonline.com/en/page/terms](https://mdvonline.com/en/page/terms) - [https://mdvonline.com/fr](https://mdvonline.com/fr) - [https://mdvonline.com/fr/page/product](https://mdvonline.com/fr/page/product) - [https://mdvonline.com/nl](https://mdvonline.com/nl) - [https://mdvonline.com/nl/page/product](https://mdvonline.com/nl/page/product) - [https://www.mdvonline.com/en/Product/pme-sonde-volgens-en-1650-1-annex-f](https://www.mdvonline.com/en/Product/pme-sonde-volgens-en-1650-1-annex-f) #### Non-ASCII characters in URL path - Rule: `url.non_ascii` · Category: URL · Occurrences: 1 - [https://mdvonline.com/en/Product/hovacal%C2%AE-gas-mixer-with-evaporator-](https://mdvonline.com/en/Product/hovacal%C2%AE-gas-mixer-with-evaporator-) #### URL is very long - Rule: `url.too_long` · Category: URL · Occurrences: 1 - [https://mdvonline.com/en/Product/testo-570s-digital-manifold-with-4-way-valve-block-bluetooth-and-intelligent-error-analysis](https://mdvonline.com/en/Product/testo-570s-digital-manifold-with-4-way-valve-block-bluetooth-and-intelligent-error-analysis) — 124 chars #### Underscores in URL path (prefer hyphens) - Rule: `url.underscores` · Category: URL · Occurrences: 2 - [https://mdvonline.com/files/2017-05/1496044699_mdv-catalogus-2016-online.pdf](https://mdvonline.com/files/2017-05/1496044699_mdv-catalogus-2016-online.pdf) - [https://mdvonline.com/thumbs/900x900r/2021-09/1632683609_testo-400-front-de-prl.jpg](https://mdvonline.com/thumbs/900x900r/2021-09/1632683609_testo-400-front-de-prl.jpg) #### Uppercase letters in URL path - Rule: `url.uppercase` · Category: URL · Occurrences: 13 - [https://mdvonline.com/en/Product/carrying-rack-for-manual-setting-of-isokinetic-sampling-rate](https://mdvonline.com/en/Product/carrying-rack-for-manual-setting-of-isokinetic-sampling-rate) - [https://mdvonline.com/en/Product/digital-massflowmeters](https://mdvonline.com/en/Product/digital-massflowmeters) - [https://mdvonline.com/en/Product/heated-fid-analyser-j-u-m-3-300a](https://mdvonline.com/en/Product/heated-fid-analyser-j-u-m-3-300a) - [https://mdvonline.com/en/Product/hovacal%C2%AE-gas-mixer-with-evaporator-](https://mdvonline.com/en/Product/hovacal%C2%AE-gas-mixer-with-evaporator-) - [https://mdvonline.com/en/Product/jumatherm-temperature-controller](https://mdvonline.com/en/Product/jumatherm-temperature-controller) - [https://mdvonline.com/en/Product/refrigerant-valve-with-bluetooth-for-digital-refrigerant-scale-testo-560i](https://mdvonline.com/en/Product/refrigerant-valve-with-bluetooth-for-digital-refrigerant-scale-testo-560i) - [https://mdvonline.com/en/Product/small-drying-tower](https://mdvonline.com/en/Product/small-drying-tower) - [https://mdvonline.com/en/Product/testo-400-universal-air-flow-and-iaq-instrument](https://mdvonline.com/en/Product/testo-400-universal-air-flow-and-iaq-instrument) - [https://mdvonline.com/en/Product/testo-570s-digital-manifold-with-4-way-valve-block-bluetooth-and-intelligent-error-analysis](https://mdvonline.com/en/Product/testo-570s-digital-manifold-with-4-way-valve-block-bluetooth-and-intelligent-error-analysis) - [https://mdvonline.com/en/Product/vacuum-manometer-for-gas-meter](https://mdvonline.com/en/Product/vacuum-manometer-for-gas-meter) - [https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big](https://mdvonline.com/en/Product/variable-area-flowmeter-rotameter-big) - [https://mdvonline.com/thumbs/900x900r/Massflow%20Analyt%20358%20batterij.jpg](https://mdvonline.com/thumbs/900x900r/Massflow%20Analyt%20358%20batterij.jpg) - [https://www.mdvonline.com/en/Product/pme-sonde-volgens-en-1650-1-annex-f](https://www.mdvonline.com/en/Product/pme-sonde-volgens-en-1650-1-annex-f) ## Checks & coverage Crawlinx ran **157 technical-SEO checks** across 27 categories. Categories marked ✓ are fully clean. - ✗ Agent Readiness — 46 warning(s), 57 notice(s) - ✓ AI Content — clean - ✓ Amp — clean - ✓ Budget — clean - ✗ Cache — 44 notice(s) - ✗ Canonical — 41 warning(s) - ✗ Content — 17 warning(s) - ✗ Crawlability — 1 error(s), 1 notice(s) - ✗ Duplicate — 6 warning(s), 4 notice(s) - ✓ Geo — clean - ✗ Headings — 46 warning(s) - ✗ Hreflang — 5 warning(s) - ✗ Images — 46 warning(s), 46 notice(s) - ✗ Indexability — 5 warning(s) - ✗ Links — 2 error(s), 45 warning(s), 62 notice(s) - ✗ Meta Description — 13 warning(s), 1 notice(s) - ✓ Mobile — clean - ✗ Performance — 1 notice(s) - ✓ Rendering — clean - ✓ Robots — clean - ✗ Security — 47 notice(s) - ✓ Sitemap — clean - ✗ Social — 56 notice(s) - ✗ Structured Data — 41 notice(s) - ✗ Titles — 3 warning(s) - ✗ URL — 17 notice(s) - ✓ Video — clean --- *Generated by [Crawlinx](https://crawlinx.com) · free technical-SEO audits · https://crawlinx.com/audit/mdvonline.com* ## 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":"<scan-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