--- tool: Crawlinx SEO audit source: https://crawlinx.com domain: thermtechnical.co.uk report_url: "https://crawlinx.com/audit/thermtechnical.co.uk" crawl_id: 20260713T123449-14c41edc health_score: 65 generated_at: 2026-07-29T00:39:18Z total_pages: 17 html_pages: 17 indexable_pages: 0 errors: 0 warnings: 40 notices: 84 --- # SEO audit: thermtechnical.co.uk **Health score: 65/100** — needs attention > Audited by [Crawlinx](https://crawlinx.com) — the free technical-SEO crawler. Full report: https://crawlinx.com/audit/thermtechnical.co.uk ## Overview | Metric | Value | | --- | --- | | Pages crawled | 17 | | HTML pages | 17 | | Indexable | 0 | | Non-indexable | 17 | | Orphan pages | 0 | | Broken internal links | 0 | | Avg response time | 1510 ms | | Errors / Warnings / Notices | 0 / 40 / 84 | | Status codes | 17×200 | ## Categories | Category | Score | Errors | Warnings | Notices | | --- | ---: | ---: | ---: | ---: | | Budget | 70 | 0 | 17 | 0 | | Indexability | 70 | 0 | 17 | 0 | | Headings | 89 | 0 | 6 | 0 | | Agent Readiness | 100 | 0 | 0 | 3 | | Images | 100 | 0 | 0 | 13 | | Performance | 100 | 0 | 0 | 48 | | Security | 100 | 0 | 0 | 18 | | Titles | 100 | 0 | 0 | 1 | | URL | 100 | 0 | 0 | 1 | ## Issues ### Warnings (40) #### Noindex page receives internal links (crawl-budget waste) - Rule: `budget.noindex_linked` · Category: Budget · Occurrences: 17 - [https://www.thermtechnical.co.uk/](https://www.thermtechnical.co.uk/) — this noindex page has 17 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.thermtechnical.co.uk/, https://www.thermtechnical.co.uk/about, https://www.thermtechnical.co.uk/portfolio. - [https://www.thermtechnical.co.uk/about](https://www.thermtechnical.co.uk/about) — this noindex page has 17 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.thermtechnical.co.uk/, https://www.thermtechnical.co.uk/about, https://www.thermtechnical.co.uk/portfolio. - [https://www.thermtechnical.co.uk/accessibility-statement](https://www.thermtechnical.co.uk/accessibility-statement) — this noindex page has 17 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.thermtechnical.co.uk/, https://www.thermtechnical.co.uk/about, https://www.thermtechnical.co.uk/portfolio. - [https://www.thermtechnical.co.uk/contact-8](https://www.thermtechnical.co.uk/contact-8) — this noindex page has 17 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.thermtechnical.co.uk/, https://www.thermtechnical.co.uk/about, https://www.thermtechnical.co.uk/portfolio. - [https://www.thermtechnical.co.uk/english-privacy-policy](https://www.thermtechnical.co.uk/english-privacy-policy) — this noindex page has 17 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.thermtechnical.co.uk/, https://www.thermtechnical.co.uk/about, https://www.thermtechnical.co.uk/portfolio. - [https://www.thermtechnical.co.uk/portfolio](https://www.thermtechnical.co.uk/portfolio) — this noindex page has 17 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.thermtechnical.co.uk/, https://www.thermtechnical.co.uk/about, https://www.thermtechnical.co.uk/portfolio. - [https://www.thermtechnical.co.uk/portfolio-collections/additional-services](https://www.thermtechnical.co.uk/portfolio-collections/additional-services) — this noindex page has 1 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.thermtechnical.co.uk/portfolio. - [https://www.thermtechnical.co.uk/portfolio-collections/additional-services/bristol-energy-and-sustainability-statements](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/bristol-energy-and-sustainability-statements) — this noindex page has 2 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.thermtechnical.co.uk/, https://www.thermtechnical.co.uk/portfolio-collections/additional-services. - [https://www.thermtechnical.co.uk/portfolio-collections/additional-services/energy-statements](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/energy-statements) — this noindex page has 2 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.thermtechnical.co.uk/, https://www.thermtechnical.co.uk/portfolio-collections/additional-services. - [https://www.thermtechnical.co.uk/portfolio-collections/additional-services/home-energy-model-hem](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/home-energy-model-hem) — this noindex page has 2 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.thermtechnical.co.uk/, https://www.thermtechnical.co.uk/portfolio-collections/additional-services. - [https://www.thermtechnical.co.uk/portfolio-collections/services](https://www.thermtechnical.co.uk/portfolio-collections/services) — this noindex page has 1 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.thermtechnical.co.uk/portfolio. - [https://www.thermtechnical.co.uk/portfolio-collections/services/building-performance-simulation-analysis](https://www.thermtechnical.co.uk/portfolio-collections/services/building-performance-simulation-analysis) — this noindex page has 2 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.thermtechnical.co.uk/, https://www.thermtechnical.co.uk/portfolio-collections/services. - [https://www.thermtechnical.co.uk/portfolio-collections/services/energy-efficiency-audit-for-new-builds](https://www.thermtechnical.co.uk/portfolio-collections/services/energy-efficiency-audit-for-new-builds) — this noindex page has 2 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.thermtechnical.co.uk/, https://www.thermtechnical.co.uk/portfolio-collections/services. - [https://www.thermtechnical.co.uk/portfolio-collections/services/leed-and-green-building-certification-guidance](https://www.thermtechnical.co.uk/portfolio-collections/services/leed-and-green-building-certification-guidance) — this noindex page has 2 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.thermtechnical.co.uk/, https://www.thermtechnical.co.uk/portfolio-collections/services. - [https://www.thermtechnical.co.uk/portfolio-collections/services/renewable-energy-integration-strategy](https://www.thermtechnical.co.uk/portfolio-collections/services/renewable-energy-integration-strategy) — this noindex page has 2 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.thermtechnical.co.uk/, https://www.thermtechnical.co.uk/portfolio-collections/services. - [https://www.thermtechnical.co.uk/portfolio-collections/services/retrofit-energy-assessment-for-existing-structures](https://www.thermtechnical.co.uk/portfolio-collections/services/retrofit-energy-assessment-for-existing-structures) — this noindex page has 2 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.thermtechnical.co.uk/, https://www.thermtechnical.co.uk/portfolio-collections/services. - [https://www.thermtechnical.co.uk/portfolio-collections/services/sap-calculations](https://www.thermtechnical.co.uk/portfolio-collections/services/sap-calculations) — this noindex page has 2 internal inlink(s) — Googlebot follows them, fetches the page, then drops it unindexed, spending crawl budget for no indexing benefit (and the links leak equity). Remove/redirect the links, or drop the noindex if the page should be indexed. Linked from: https://www.thermtechnical.co.uk/, https://www.thermtechnical.co.uk/portfolio-collections/services. #### Missing

- Rule: `h1.missing` · Category: Headings · Occurrences: 6 - [https://www.thermtechnical.co.uk/about](https://www.thermtechnical.co.uk/about) - [https://www.thermtechnical.co.uk/accessibility-statement](https://www.thermtechnical.co.uk/accessibility-statement) - [https://www.thermtechnical.co.uk/english-privacy-policy](https://www.thermtechnical.co.uk/english-privacy-policy) - [https://www.thermtechnical.co.uk/portfolio](https://www.thermtechnical.co.uk/portfolio) - [https://www.thermtechnical.co.uk/portfolio-collections/additional-services](https://www.thermtechnical.co.uk/portfolio-collections/additional-services) - [https://www.thermtechnical.co.uk/portfolio-collections/services](https://www.thermtechnical.co.uk/portfolio-collections/services) #### Page is noindex - Rule: `index.noindex` · Category: Indexability · Occurrences: 17 - [https://www.thermtechnical.co.uk/](https://www.thermtechnical.co.uk/) — meta/X-Robots: meta=noindex - [https://www.thermtechnical.co.uk/about](https://www.thermtechnical.co.uk/about) — meta/X-Robots: meta=noindex - [https://www.thermtechnical.co.uk/accessibility-statement](https://www.thermtechnical.co.uk/accessibility-statement) — meta/X-Robots: meta=noindex - [https://www.thermtechnical.co.uk/contact-8](https://www.thermtechnical.co.uk/contact-8) — meta/X-Robots: meta=noindex - [https://www.thermtechnical.co.uk/english-privacy-policy](https://www.thermtechnical.co.uk/english-privacy-policy) — meta/X-Robots: meta=noindex - [https://www.thermtechnical.co.uk/portfolio](https://www.thermtechnical.co.uk/portfolio) — meta/X-Robots: meta=noindex - [https://www.thermtechnical.co.uk/portfolio-collections/additional-services](https://www.thermtechnical.co.uk/portfolio-collections/additional-services) — meta/X-Robots: meta=noindex - [https://www.thermtechnical.co.uk/portfolio-collections/additional-services/bristol-energy-and-sustainability-statements](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/bristol-energy-and-sustainability-statements) — meta/X-Robots: meta=noindex - [https://www.thermtechnical.co.uk/portfolio-collections/additional-services/energy-statements](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/energy-statements) — meta/X-Robots: meta=noindex - [https://www.thermtechnical.co.uk/portfolio-collections/additional-services/home-energy-model-hem](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/home-energy-model-hem) — meta/X-Robots: meta=noindex - [https://www.thermtechnical.co.uk/portfolio-collections/services](https://www.thermtechnical.co.uk/portfolio-collections/services) — meta/X-Robots: meta=noindex - [https://www.thermtechnical.co.uk/portfolio-collections/services/building-performance-simulation-analysis](https://www.thermtechnical.co.uk/portfolio-collections/services/building-performance-simulation-analysis) — meta/X-Robots: meta=noindex - [https://www.thermtechnical.co.uk/portfolio-collections/services/energy-efficiency-audit-for-new-builds](https://www.thermtechnical.co.uk/portfolio-collections/services/energy-efficiency-audit-for-new-builds) — meta/X-Robots: meta=noindex - [https://www.thermtechnical.co.uk/portfolio-collections/services/leed-and-green-building-certification-guidance](https://www.thermtechnical.co.uk/portfolio-collections/services/leed-and-green-building-certification-guidance) — meta/X-Robots: meta=noindex - [https://www.thermtechnical.co.uk/portfolio-collections/services/renewable-energy-integration-strategy](https://www.thermtechnical.co.uk/portfolio-collections/services/renewable-energy-integration-strategy) — meta/X-Robots: meta=noindex - [https://www.thermtechnical.co.uk/portfolio-collections/services/retrofit-energy-assessment-for-existing-structures](https://www.thermtechnical.co.uk/portfolio-collections/services/retrofit-energy-assessment-for-existing-structures) — meta/X-Robots: meta=noindex - [https://www.thermtechnical.co.uk/portfolio-collections/services/sap-calculations](https://www.thermtechnical.co.uk/portfolio-collections/services/sap-calculations) — meta/X-Robots: meta=noindex ### Notices (84) #### Heading levels skip a level - Rule: `agent.heading_skip` · Category: Agent Readiness · Occurrences: 2 - [https://www.thermtechnical.co.uk/about](https://www.thermtechnical.co.uk/about) — h4 follows h2 — skips h3 - [https://www.thermtechnical.co.uk/accessibility-statement](https://www.thermtechnical.co.uk/accessibility-statement) — h5 follows h2 — skips h3 #### No llms.txt for AI agents - Rule: `agent.llms_txt_missing` · Category: Agent Readiness · Occurrences: 1 - [https://www.thermtechnical.co.uk/](https://www.thermtechnical.co.uk/) — no llms.txt found at the site root — add one so AI agents get a curated site summary #### Likely hero image lacks fetchpriority=high - Rule: `images.hero_no_fetchpriority` · Category: Performance · Occurrences: 14 - [https://www.thermtechnical.co.uk/](https://www.thermtechnical.co.uk/) — the likely hero/LCP image (1901b5_7966b9319c574b469fc8233d7d5db123~mv2.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://www.thermtechnical.co.uk/contact-8](https://www.thermtechnical.co.uk/contact-8) — the likely hero/LCP image (0fdef751204647a3bbd7eaa2827ed4f9.png) 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://www.thermtechnical.co.uk/portfolio](https://www.thermtechnical.co.uk/portfolio) — the likely hero/LCP image (1901b5_3c075058422943f7b94abc7a77856f5f~mv2.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://www.thermtechnical.co.uk/portfolio-collections/additional-services](https://www.thermtechnical.co.uk/portfolio-collections/additional-services) — the likely hero/LCP image (11062b_2b293c2841f642deaae0ecc506903b4b~mv2.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://www.thermtechnical.co.uk/portfolio-collections/additional-services/bristol-energy-and-sustainability-statements](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/bristol-energy-and-sustainability-statements) — the likely hero/LCP image (nsplsh_1429b9a6897041aa82bc2f64bd371f8c~mv2.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://www.thermtechnical.co.uk/portfolio-collections/additional-services/energy-statements](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/energy-statements) — the likely hero/LCP image (nsplsh_fc0fd712b0fd4de9b425a810432e5ef9~mv2.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://www.thermtechnical.co.uk/portfolio-collections/additional-services/home-energy-model-hem](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/home-energy-model-hem) — the likely hero/LCP image (11062b_2b293c2841f642deaae0ecc506903b4b~mv2.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://www.thermtechnical.co.uk/portfolio-collections/services](https://www.thermtechnical.co.uk/portfolio-collections/services) — the likely hero/LCP image (11062b_5d9bf37885be4b538a72a4d3478add8a~mv2.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://www.thermtechnical.co.uk/portfolio-collections/services/building-performance-simulation-analysis](https://www.thermtechnical.co.uk/portfolio-collections/services/building-performance-simulation-analysis) — the likely hero/LCP image (11062b_1bff5b9a04114c0b979a96d97a854746~mv2.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://www.thermtechnical.co.uk/portfolio-collections/services/energy-efficiency-audit-for-new-builds](https://www.thermtechnical.co.uk/portfolio-collections/services/energy-efficiency-audit-for-new-builds) — the likely hero/LCP image (11062b_7d5cdc598c3b46b8a56fbcb3325544be~mv2.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://www.thermtechnical.co.uk/portfolio-collections/services/leed-and-green-building-certification-guidance](https://www.thermtechnical.co.uk/portfolio-collections/services/leed-and-green-building-certification-guidance) — the likely hero/LCP image (11062b_85f93424eb404080b61932ca9867d7d1~mv2.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://www.thermtechnical.co.uk/portfolio-collections/services/renewable-energy-integration-strategy](https://www.thermtechnical.co.uk/portfolio-collections/services/renewable-energy-integration-strategy) — the likely hero/LCP image (1901b5_4ebdf9c01b74455584c6ab6e791acba5~mv2.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://www.thermtechnical.co.uk/portfolio-collections/services/retrofit-energy-assessment-for-existing-structures](https://www.thermtechnical.co.uk/portfolio-collections/services/retrofit-energy-assessment-for-existing-structures) — the likely hero/LCP image (11062b_277ce851a9104509a779709f79d04342~mv2.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://www.thermtechnical.co.uk/portfolio-collections/services/sap-calculations](https://www.thermtechnical.co.uk/portfolio-collections/services/sap-calculations) — the likely hero/LCP image (11062b_5d9bf37885be4b538a72a4d3478add8a~mv2.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. #### Images without width/height (layout shift / CLS) - Rule: `images.missing_dimensions` · Category: Images · Occurrences: 13 - [https://www.thermtechnical.co.uk/](https://www.thermtechnical.co.uk/) — 12 of 26 images without width/height - [https://www.thermtechnical.co.uk/portfolio](https://www.thermtechnical.co.uk/portfolio) — 4 of 9 images without width/height - [https://www.thermtechnical.co.uk/portfolio-collections/additional-services](https://www.thermtechnical.co.uk/portfolio-collections/additional-services) — 8 of 13 images without width/height - [https://www.thermtechnical.co.uk/portfolio-collections/additional-services/bristol-energy-and-sustainability-statements](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/bristol-energy-and-sustainability-statements) — 2 of 7 images without width/height - [https://www.thermtechnical.co.uk/portfolio-collections/additional-services/energy-statements](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/energy-statements) — 2 of 7 images without width/height - [https://www.thermtechnical.co.uk/portfolio-collections/additional-services/home-energy-model-hem](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/home-energy-model-hem) — 2 of 7 images without width/height - [https://www.thermtechnical.co.uk/portfolio-collections/services](https://www.thermtechnical.co.uk/portfolio-collections/services) — 12 of 17 images without width/height - [https://www.thermtechnical.co.uk/portfolio-collections/services/building-performance-simulation-analysis](https://www.thermtechnical.co.uk/portfolio-collections/services/building-performance-simulation-analysis) — 2 of 7 images without width/height - [https://www.thermtechnical.co.uk/portfolio-collections/services/energy-efficiency-audit-for-new-builds](https://www.thermtechnical.co.uk/portfolio-collections/services/energy-efficiency-audit-for-new-builds) — 2 of 7 images without width/height - [https://www.thermtechnical.co.uk/portfolio-collections/services/leed-and-green-building-certification-guidance](https://www.thermtechnical.co.uk/portfolio-collections/services/leed-and-green-building-certification-guidance) — 2 of 7 images without width/height - [https://www.thermtechnical.co.uk/portfolio-collections/services/renewable-energy-integration-strategy](https://www.thermtechnical.co.uk/portfolio-collections/services/renewable-energy-integration-strategy) — 2 of 7 images without width/height - [https://www.thermtechnical.co.uk/portfolio-collections/services/retrofit-energy-assessment-for-existing-structures](https://www.thermtechnical.co.uk/portfolio-collections/services/retrofit-energy-assessment-for-existing-structures) — 2 of 7 images without width/height - [https://www.thermtechnical.co.uk/portfolio-collections/services/sap-calculations](https://www.thermtechnical.co.uk/portfolio-collections/services/sap-calculations) — 2 of 7 images without width/height #### Legacy image format (jpg/png/gif) with no next-gen fallback - Rule: `perf.images_legacy_format` · Category: Performance · Occurrences: 17 - [https://www.thermtechnical.co.uk/](https://www.thermtechnical.co.uk/) — 19 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://www.thermtechnical.co.uk/about](https://www.thermtechnical.co.uk/about) — 6 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://www.thermtechnical.co.uk/accessibility-statement](https://www.thermtechnical.co.uk/accessibility-statement) — 5 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://www.thermtechnical.co.uk/contact-8](https://www.thermtechnical.co.uk/contact-8) — 9 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://www.thermtechnical.co.uk/english-privacy-policy](https://www.thermtechnical.co.uk/english-privacy-policy) — 5 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://www.thermtechnical.co.uk/portfolio](https://www.thermtechnical.co.uk/portfolio) — 6 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://www.thermtechnical.co.uk/portfolio-collections/additional-services](https://www.thermtechnical.co.uk/portfolio-collections/additional-services) — 9 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://www.thermtechnical.co.uk/portfolio-collections/additional-services/bristol-energy-and-sustainability-statements](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/bristol-energy-and-sustainability-statements) — 6 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://www.thermtechnical.co.uk/portfolio-collections/additional-services/energy-statements](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/energy-statements) — 6 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://www.thermtechnical.co.uk/portfolio-collections/additional-services/home-energy-model-hem](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/home-energy-model-hem) — 6 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://www.thermtechnical.co.uk/portfolio-collections/services](https://www.thermtechnical.co.uk/portfolio-collections/services) — 10 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://www.thermtechnical.co.uk/portfolio-collections/services/building-performance-simulation-analysis](https://www.thermtechnical.co.uk/portfolio-collections/services/building-performance-simulation-analysis) — 6 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://www.thermtechnical.co.uk/portfolio-collections/services/energy-efficiency-audit-for-new-builds](https://www.thermtechnical.co.uk/portfolio-collections/services/energy-efficiency-audit-for-new-builds) — 6 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://www.thermtechnical.co.uk/portfolio-collections/services/leed-and-green-building-certification-guidance](https://www.thermtechnical.co.uk/portfolio-collections/services/leed-and-green-building-certification-guidance) — 6 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://www.thermtechnical.co.uk/portfolio-collections/services/renewable-energy-integration-strategy](https://www.thermtechnical.co.uk/portfolio-collections/services/renewable-energy-integration-strategy) — 5 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://www.thermtechnical.co.uk/portfolio-collections/services/retrofit-energy-assessment-for-existing-structures](https://www.thermtechnical.co.uk/portfolio-collections/services/retrofit-energy-assessment-for-existing-structures) — 6 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://www.thermtechnical.co.uk/portfolio-collections/services/sap-calculations](https://www.thermtechnical.co.uk/portfolio-collections/services/sap-calculations) — 6 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 Last-Modified header (no conditional GET for unchanged pages) - Rule: `perf.no_last_modified` · Category: Performance · Occurrences: 17 - [https://www.thermtechnical.co.uk/](https://www.thermtechnical.co.uk/) — 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.thermtechnical.co.uk/about](https://www.thermtechnical.co.uk/about) — 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.thermtechnical.co.uk/accessibility-statement](https://www.thermtechnical.co.uk/accessibility-statement) — 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.thermtechnical.co.uk/contact-8](https://www.thermtechnical.co.uk/contact-8) — 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.thermtechnical.co.uk/english-privacy-policy](https://www.thermtechnical.co.uk/english-privacy-policy) — 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.thermtechnical.co.uk/portfolio](https://www.thermtechnical.co.uk/portfolio) — 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.thermtechnical.co.uk/portfolio-collections/additional-services](https://www.thermtechnical.co.uk/portfolio-collections/additional-services) — 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.thermtechnical.co.uk/portfolio-collections/additional-services/bristol-energy-and-sustainability-statements](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/bristol-energy-and-sustainability-statements) — 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.thermtechnical.co.uk/portfolio-collections/additional-services/energy-statements](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/energy-statements) — 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.thermtechnical.co.uk/portfolio-collections/additional-services/home-energy-model-hem](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/home-energy-model-hem) — 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.thermtechnical.co.uk/portfolio-collections/services](https://www.thermtechnical.co.uk/portfolio-collections/services) — 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.thermtechnical.co.uk/portfolio-collections/services/building-performance-simulation-analysis](https://www.thermtechnical.co.uk/portfolio-collections/services/building-performance-simulation-analysis) — 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.thermtechnical.co.uk/portfolio-collections/services/energy-efficiency-audit-for-new-builds](https://www.thermtechnical.co.uk/portfolio-collections/services/energy-efficiency-audit-for-new-builds) — 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.thermtechnical.co.uk/portfolio-collections/services/leed-and-green-building-certification-guidance](https://www.thermtechnical.co.uk/portfolio-collections/services/leed-and-green-building-certification-guidance) — 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.thermtechnical.co.uk/portfolio-collections/services/renewable-energy-integration-strategy](https://www.thermtechnical.co.uk/portfolio-collections/services/renewable-energy-integration-strategy) — 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.thermtechnical.co.uk/portfolio-collections/services/retrofit-energy-assessment-for-existing-structures](https://www.thermtechnical.co.uk/portfolio-collections/services/retrofit-energy-assessment-for-existing-structures) — 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.thermtechnical.co.uk/portfolio-collections/services/sap-calculations](https://www.thermtechnical.co.uk/portfolio-collections/services/sap-calculations) — 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. #### Missing recommended security headers - Rule: `security.missing_headers` · Category: Security · Occurrences: 17 - [https://www.thermtechnical.co.uk/](https://www.thermtechnical.co.uk/) — CSP - [https://www.thermtechnical.co.uk/about](https://www.thermtechnical.co.uk/about) — CSP - [https://www.thermtechnical.co.uk/accessibility-statement](https://www.thermtechnical.co.uk/accessibility-statement) — CSP - [https://www.thermtechnical.co.uk/contact-8](https://www.thermtechnical.co.uk/contact-8) — CSP - [https://www.thermtechnical.co.uk/english-privacy-policy](https://www.thermtechnical.co.uk/english-privacy-policy) — CSP - [https://www.thermtechnical.co.uk/portfolio](https://www.thermtechnical.co.uk/portfolio) — CSP - [https://www.thermtechnical.co.uk/portfolio-collections/additional-services](https://www.thermtechnical.co.uk/portfolio-collections/additional-services) — CSP - [https://www.thermtechnical.co.uk/portfolio-collections/additional-services/bristol-energy-and-sustainability-statements](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/bristol-energy-and-sustainability-statements) — CSP - [https://www.thermtechnical.co.uk/portfolio-collections/additional-services/energy-statements](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/energy-statements) — CSP - [https://www.thermtechnical.co.uk/portfolio-collections/additional-services/home-energy-model-hem](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/home-energy-model-hem) — CSP - [https://www.thermtechnical.co.uk/portfolio-collections/services](https://www.thermtechnical.co.uk/portfolio-collections/services) — CSP - [https://www.thermtechnical.co.uk/portfolio-collections/services/building-performance-simulation-analysis](https://www.thermtechnical.co.uk/portfolio-collections/services/building-performance-simulation-analysis) — CSP - [https://www.thermtechnical.co.uk/portfolio-collections/services/energy-efficiency-audit-for-new-builds](https://www.thermtechnical.co.uk/portfolio-collections/services/energy-efficiency-audit-for-new-builds) — CSP - [https://www.thermtechnical.co.uk/portfolio-collections/services/leed-and-green-building-certification-guidance](https://www.thermtechnical.co.uk/portfolio-collections/services/leed-and-green-building-certification-guidance) — CSP - [https://www.thermtechnical.co.uk/portfolio-collections/services/renewable-energy-integration-strategy](https://www.thermtechnical.co.uk/portfolio-collections/services/renewable-energy-integration-strategy) — CSP - [https://www.thermtechnical.co.uk/portfolio-collections/services/retrofit-energy-assessment-for-existing-structures](https://www.thermtechnical.co.uk/portfolio-collections/services/retrofit-energy-assessment-for-existing-structures) — CSP - [https://www.thermtechnical.co.uk/portfolio-collections/services/sap-calculations](https://www.thermtechnical.co.uk/portfolio-collections/services/sap-calculations) — CSP #### target=_blank link without rel=noopener (tab-napping) - Rule: `security.unsafe_cross_origin_links` · Category: Security · Occurrences: 1 - [https://www.thermtechnical.co.uk/accessibility-statement](https://www.thermtechnical.co.uk/accessibility-statement) — 1 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer". #### Title is very short - Rule: `title.too_short` · Category: Titles · Occurrences: 1 - [https://www.thermtechnical.co.uk/portfolio-collections/services](https://www.thermtechnical.co.uk/portfolio-collections/services) — 8 chars #### URL is very long - Rule: `url.too_long` · Category: URL · Occurrences: 1 - [https://www.thermtechnical.co.uk/portfolio-collections/additional-services/bristol-energy-and-sustainability-statements](https://www.thermtechnical.co.uk/portfolio-collections/additional-services/bristol-energy-and-sustainability-statements) — 119 chars ## Checks & coverage Crawlinx ran **157 technical-SEO checks** across 27 categories. Categories marked ✓ are fully clean. - ✗ Agent Readiness — 3 notice(s) - ✓ AI Content — clean - ✓ Amp — clean - ✗ Budget — 17 warning(s) - ✓ Cache — clean - ✓ Canonical — clean - ✓ Content — clean - ✓ Crawlability — clean - ✓ Duplicate — clean - ✓ Geo — clean - ✗ Headings — 6 warning(s) - ✓ Hreflang — clean - ✗ Images — 13 notice(s) - ✗ Indexability — 17 warning(s) - ✓ Links — clean - ✓ Meta Description — clean - ✓ Mobile — clean - ✗ Performance — 48 notice(s) - ✓ Rendering — clean - ✓ Robots — clean - ✗ Security — 18 notice(s) - ✓ Sitemap — clean - ✓ Social — clean - ✓ Structured Data — clean - ✗ Titles — 1 notice(s) - ✗ URL — 1 notice(s) - ✓ Video — clean --- *Generated by [Crawlinx](https://crawlinx.com) · free technical-SEO audits · https://crawlinx.com/audit/thermtechnical.co.uk* ## 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