SEO audit for skcharoensup.co.th
S.K. Charoensup Engineering | Electrical and Mechanical System Installation | S.K. Charoensup Engineering | Electrical and Mechanical System Installation
Health 65/100 (fair) · 9 pages crawled · generated 2026-08-26
Download Markdown report (feed to ChatGPT / Claude / Cursor)S.K. Charoensup Engineering provides electrical and mechanical installation services to homes, businesses, and industries both domestically and internationally.
| Category | Score | Errors | Warnings | Notices |
|---|---|---|---|---|
| Hreflang | 70 | 0 | 9 | 0 |
| Titles | 83 | 0 | 5 | 0 |
| Duplicate | 87 | 0 | 4 | 0 |
| Performance | 87 | 0 | 4 | 32 |
| Crawlability | 93 | 0 | 2 | 0 |
| Structured Data | 93 | 0 | 2 | 5 |
| Content | 97 | 0 | 1 | 11 |
| Agent Readiness | 100 | 0 | 0 | 3 |
| Cache | 100 | 0 | 0 | 7 |
| Canonical | 100 | 0 | 0 | 2 |
| Headings | 100 | 0 | 0 | 7 |
| Images | 100 | 0 | 0 | 7 |
| Social | 100 | 0 | 0 | 5 |
Warnings (9 rules)
warning Thin content (low word count)
Rule content.thin · Content · 1 occurrence(s)
- https://skcharoensup.co.th/th/about — 162 words
warning Near-duplicate page content
Rule duplicate.near · Duplicate · 2 occurrence(s)
- https://skcharoensup.co.th/en/products?category=building-wires-and-cables&q=BCC — near-duplicate of 1 page(s): https://skcharoensup.co.th/en/products?category=wires-and-cables
- https://skcharoensup.co.th/en/products?category=wires-and-cables — near-duplicate of 1 page(s): https://skcharoensup.co.th/en/products?category=building-wires-and-cables&q=BCC
warning Duplicate <title> across pages
Rule duplicate.title · Duplicate · 2 occurrence(s)
- https://skcharoensup.co.th/en/products/wires-and-cables-bcc-60227-iec-01-thw — title shared by 2 pages: https://skcharoensup.co.th/th/products/wires-and-cables-bcc-60227-iec-01-thw
- https://skcharoensup.co.th/th/products/wires-and-cables-bcc-60227-iec-01-thw — title shared by 2 pages: https://skcharoensup.co.th/en/products/wires-and-cables-bcc-60227-iec-01-thw
warning Incomplete/empty response after retries (likely transient — re-crawl)
Rule fetch.incomplete · Crawlability · 2 occurrence(s)
- https://skcharoensup.co.th/th — HTTP 200, 0 words after 3 attempts
- https://skcharoensup.co.th/th/products?category=sub-category-1776330574257&q=BCC — context deadline exceeded after 3 attempts
warning hreflang set has no self-reference
Rule hreflang.missing_self · Hreflang · 5 occurrence(s)
- https://skcharoensup.co.th/en — no hreflang entry points to this URL
- https://skcharoensup.co.th/en/about — no hreflang entry points to this URL
- https://skcharoensup.co.th/en/products?category=building-wires-and-cables&q=BCC — no hreflang entry points to this URL
- https://skcharoensup.co.th/en/products?category=wires-and-cables — no hreflang entry points to this URL
- https://skcharoensup.co.th/th/about — no hreflang entry points to this URL
warning hreflang has no return link (not reciprocal)
Rule hreflang.no_return · Hreflang · 4 occurrence(s)
- https://skcharoensup.co.th/en/about — https://skcharoensup.co.th/en (en) does not link back
- https://skcharoensup.co.th/en/about — https://skcharoensup.co.th/th (th) does not link back
- https://skcharoensup.co.th/th/about — https://skcharoensup.co.th/en (en) does not link back
- https://skcharoensup.co.th/th/about — https://skcharoensup.co.th/th (th) does not link back
warning Hero/LCP image is lazy-loaded (loading=lazy delays LCP)
Rule images.no_lazy_lcp_candidate · Performance · 4 occurrence(s)
- https://skcharoensup.co.th/en/about — the likely hero/LCP image (solar.png) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead.
- https://skcharoensup.co.th/en/products?category=building-wires-and-cables&q=BCC — the likely hero/LCP image (vct-g(2%2bg)%20-%20bcc.png) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead.
- https://skcharoensup.co.th/en/products?category=wires-and-cables — the likely hero/LCP image (vct-g(2%2bg)%20-%20bcc.png) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead.
- https://skcharoensup.co.th/th/about — the likely hero/LCP image (solar.png) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead.
warning Product schema missing required or recommended properties
Rule schema.product_incomplete · Structured Data · 2 occurrence(s)
- https://skcharoensup.co.th/en/products/wires-and-cables-bcc-60227-iec-01-thw — Product structured data is missing required properties (offers.price, offers.priceCurrency) — without them Google won't generate the rich result. Add each field (and validate with the Rich Results Test). It is also missing recommended properties (sku|gtin, aggregateRating, review), which enrich the result.
- https://skcharoensup.co.th/th/products/wires-and-cables-bcc-60227-iec-01-thw — Product structured data is missing required properties (offers.price, offers.priceCurrency) — without them Google won't generate the rich result. Add each field (and validate with the Rich Results Test). It is also missing recommended properties (sku|gtin, aggregateRating, review), which enrich the result.
warning Title likely truncated in SERP (too wide)
Rule title.too_long · Titles · 5 occurrence(s)
- https://skcharoensup.co.th/en — 153 chars, ~1155px (limit ~580px)
- https://skcharoensup.co.th/en/about — 116 chars, ~882px (limit ~580px)
- https://skcharoensup.co.th/en/products?category=building-wires-and-cables&q=BCC — 116 chars, ~881px (limit ~580px)
- https://skcharoensup.co.th/en/products?category=wires-and-cables — 116 chars, ~881px (limit ~580px)
- https://skcharoensup.co.th/th/about — 111 chars, ~908px (limit ~580px)
Notices (16 rules)
notice Heading levels skip a level
Rule agent.heading_skip · Agent Readiness · 2 occurrence(s)
- https://skcharoensup.co.th/en/products?category=building-wires-and-cables&q=BCC — h3 follows h1 — skips h2
- https://skcharoensup.co.th/en/products?category=wires-and-cables — h3 follows h1 — skips h2
notice No llms.txt for AI agents
Rule agent.llms_txt_missing · Agent Readiness · 1 occurrence(s)
- https://skcharoensup.co.th/ — no llms.txt found at the site root — add one so AI agents get a curated site summary
notice Page served uncached (no-store/private or CDN bypass)
Rule cache.not_cacheable · Cache · 7 occurrence(s)
- https://skcharoensup.co.th/en — Cache-Control: private, no-cache, no-store, max-age=0, must-revalidate
- https://skcharoensup.co.th/en/about — Cache-Control: private, no-cache, no-store, max-age=0, must-revalidate
- https://skcharoensup.co.th/en/products/wires-and-cables-bcc-60227-iec-01-thw — Cache-Control: private, no-cache, no-store, max-age=0, must-revalidate
- https://skcharoensup.co.th/en/products?category=building-wires-and-cables&q=BCC — Cache-Control: private, no-cache, no-store, max-age=0, must-revalidate
- https://skcharoensup.co.th/en/products?category=wires-and-cables — Cache-Control: private, no-cache, no-store, max-age=0, must-revalidate
- https://skcharoensup.co.th/th/about — Cache-Control: private, no-cache, no-store, max-age=0, must-revalidate
- https://skcharoensup.co.th/th/products/wires-and-cables-bcc-60227-iec-01-thw — Cache-Control: private, no-cache, no-store, max-age=0, must-revalidate
notice Canonical points to a different URL
Rule canonical.non_self · Canonical · 2 occurrence(s)
- https://skcharoensup.co.th/en/about — canonical=https://skcharoensup.co.th/en
- https://skcharoensup.co.th/th/about — canonical=https://skcharoensup.co.th/th
notice Low text-to-HTML ratio
Rule content.low_ratio · Content · 7 occurrence(s)
- https://skcharoensup.co.th/en — 0.2%
- https://skcharoensup.co.th/en/about — 0.3%
- https://skcharoensup.co.th/en/products/wires-and-cables-bcc-60227-iec-01-thw — 0.2%
- https://skcharoensup.co.th/en/products?category=building-wires-and-cables&q=BCC — 0.2%
- https://skcharoensup.co.th/en/products?category=wires-and-cables — 0.2%
- https://skcharoensup.co.th/th/about — 0.5%
- https://skcharoensup.co.th/th/products/wires-and-cables-bcc-60227-iec-01-thw — 0.4%
notice Main text is hard to read (low Flesch Reading Ease)
Rule content.readability_poor · Content · 4 occurrence(s)
- https://skcharoensup.co.th/en — this page reads as very difficult (Flesch Reading Ease 15, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
- https://skcharoensup.co.th/en/about — this page reads as very difficult (Flesch Reading Ease 16, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
- https://skcharoensup.co.th/en/products?category=building-wires-and-cables&q=BCC — this page reads as difficult (Flesch Reading Ease 47, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
- https://skcharoensup.co.th/en/products?category=wires-and-cables — this page reads as difficult (Flesch Reading Ease 46, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
notice Multiple <h1> elements
Rule h1.multiple · Headings · 7 occurrence(s)
- https://skcharoensup.co.th/en — 3 <h1> elements
- https://skcharoensup.co.th/en/about — 2 <h1> elements
- https://skcharoensup.co.th/en/products/wires-and-cables-bcc-60227-iec-01-thw — 3 <h1> elements
- https://skcharoensup.co.th/en/products?category=building-wires-and-cables&q=BCC — 3 <h1> elements
- https://skcharoensup.co.th/en/products?category=wires-and-cables — 3 <h1> elements
- https://skcharoensup.co.th/th/about — 2 <h1> elements
- https://skcharoensup.co.th/th/products/wires-and-cables-bcc-60227-iec-01-thw — 3 <h1> elements
notice Likely hero image lacks fetchpriority=high
Rule images.hero_no_fetchpriority · Performance · 3 occurrence(s)
- https://skcharoensup.co.th/en — the likely hero/LCP image (sk-logo.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://skcharoensup.co.th/en/products/wires-and-cables-bcc-60227-iec-01-thw — the likely hero/LCP image (iec%2001%20thw-1.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://skcharoensup.co.th/th/products/wires-and-cables-bcc-60227-iec-01-thw — the likely hero/LCP image (iec%2001%20thw-1.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.
notice Images without width/height (layout shift / CLS)
Rule images.missing_dimensions · Images · 7 occurrence(s)
- https://skcharoensup.co.th/en — 16 of 17 images without width/height
- https://skcharoensup.co.th/en/about — 3 of 3 images without width/height
- https://skcharoensup.co.th/en/products/wires-and-cables-bcc-60227-iec-01-thw — 12 of 12 images without width/height
- https://skcharoensup.co.th/en/products?category=building-wires-and-cables&q=BCC — 14 of 14 images without width/height
- https://skcharoensup.co.th/en/products?category=wires-and-cables — 14 of 14 images without width/height
- https://skcharoensup.co.th/th/about — 3 of 3 images without width/height
- https://skcharoensup.co.th/th/products/wires-and-cables-bcc-60227-iec-01-thw — 12 of 12 images without width/height
notice Missing Open Graph tags
Rule og.missing · Social · 5 occurrence(s)
notice Legacy image format (jpg/png/gif) with no next-gen fallback
Rule perf.images_legacy_format · Performance · 7 occurrence(s)
- https://skcharoensup.co.th/en — 17 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- https://skcharoensup.co.th/en/about — 3 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- https://skcharoensup.co.th/en/products/wires-and-cables-bcc-60227-iec-01-thw — 12 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- https://skcharoensup.co.th/en/products?category=building-wires-and-cables&q=BCC — 14 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- https://skcharoensup.co.th/en/products?category=wires-and-cables — 14 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- https://skcharoensup.co.th/th/about — 3 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- https://skcharoensup.co.th/th/products/wires-and-cables-bcc-60227-iec-01-thw — 12 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
notice Large HTML document
Rule perf.large_html · Performance · 1 occurrence(s)
- https://skcharoensup.co.th/en — 2.9 MiB
notice No ETag header (no conditional GET for unchanged pages)
Rule perf.no_etag · Performance · 7 occurrence(s)
- https://skcharoensup.co.th/en — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- https://skcharoensup.co.th/en/about — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- https://skcharoensup.co.th/en/products/wires-and-cables-bcc-60227-iec-01-thw — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- https://skcharoensup.co.th/en/products?category=building-wires-and-cables&q=BCC — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- https://skcharoensup.co.th/en/products?category=wires-and-cables — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- https://skcharoensup.co.th/th/about — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- https://skcharoensup.co.th/th/products/wires-and-cables-bcc-60227-iec-01-thw — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
notice No Last-Modified header (no conditional GET for unchanged pages)
Rule perf.no_last_modified · Performance · 7 occurrence(s)
- https://skcharoensup.co.th/en — 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://skcharoensup.co.th/en/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://skcharoensup.co.th/en/products/wires-and-cables-bcc-60227-iec-01-thw — 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://skcharoensup.co.th/en/products?category=building-wires-and-cables&q=BCC — 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://skcharoensup.co.th/en/products?category=wires-and-cables — 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://skcharoensup.co.th/th/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://skcharoensup.co.th/th/products/wires-and-cables-bcc-60227-iec-01-thw — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
notice Slow server response
Rule perf.slow_response · Performance · 7 occurrence(s)
- https://skcharoensup.co.th/en — 7972 ms
- https://skcharoensup.co.th/en/about — 3592 ms
- https://skcharoensup.co.th/en/products/wires-and-cables-bcc-60227-iec-01-thw — 9496 ms
- https://skcharoensup.co.th/en/products?category=building-wires-and-cables&q=BCC — 8390 ms
- https://skcharoensup.co.th/en/products?category=wires-and-cables — 8704 ms
- https://skcharoensup.co.th/th/about — 3960 ms
- https://skcharoensup.co.th/th/products/wires-and-cables-bcc-60227-iec-01-thw — 13651 ms
notice No structured data detected
Rule schema.none · Structured Data · 5 occurrence(s)
| URL | Status | Indexable | Words | In-links |
|---|---|---|---|---|
| https://skcharoensup.co.th/en S.K. Charoensup Engineering | Electrical and Mechanical System Installation | S.K. Charoensup Engineering | Electrical and Mechanical System Installation |
200 | yes | 609 | 5 |
| https://skcharoensup.co.th/en/about About Us | S.K. Charoensup Engineering | S.K. Charoensup Engineering | Electrical and Mechanical System Installation |
200 | yes | 410 | 5 |
| https://skcharoensup.co.th/en/products?category=wires-and-cables Products | S.K. Charoensup Engineering | S.K. Charoensup Engineering | Electrical and Mechanical System Installation |
200 | yes | 387 | 1 |
| https://skcharoensup.co.th/th | 200 | yes | 0 | 2 |
| https://skcharoensup.co.th/th/about เกี่ยวกับเรา | หจก. เอส.เค.เจริญทรัพย์ วิศวกรรม | S.K. Charoensup Engineering | งานติดตั้งระบบไฟฟ้าและเครื่องกล |
200 | yes | 162 | 2 |
| https://skcharoensup.co.th/en/products?category=building-wires-and-cables&q=BCC Products | S.K. Charoensup Engineering | S.K. Charoensup Engineering | Electrical and Mechanical System Installation |
200 | yes | 378 | 1 |
| https://skcharoensup.co.th/en/products/wires-and-cables-bcc-60227-iec-01-thw 60227 IEC 01 THW |
200 | yes | 428 | 0 |
| https://skcharoensup.co.th/th/products/wires-and-cables-bcc-60227-iec-01-thw 60227 IEC 01 THW |
200 | yes | 304 | 0 |
| https://skcharoensup.co.th/th/products?category=sub-category-1776330574257&q=BCC | 0 | no | 0 | 1 |
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