76
SEO audit for oosugakensetsu.com
株式会社大須賀建設｜栃木県那須塩原市の外構・土木工事の求人募集
Health 76/100 (good) · 15 pages crawled · generated 2026-08-26
Download Markdown report (feed to ChatGPT / Claude / Cursor)株式会社大須賀建設は建設業を行っている会社です。求人も募集しております。
15
pages crawled
9
indexable pages
0
errors
39
warnings
151
notices
0
orphan pages
0
broken links
Category breakdown
| Category | Score | Errors | Warnings | Notices |
|---|---|---|---|---|
| Agent Readiness | 82 | 0 | 9 | 3 |
| Content | 82 | 0 | 9 | 9 |
| Images | 82 | 0 | 9 | 9 |
| Performance | 82 | 0 | 9 | 37 |
| Headings | 94 | 0 | 3 | 0 |
| Cache | 100 | 0 | 0 | 9 |
| Duplicate | 100 | 0 | 0 | 6 |
| Links | 100 | 0 | 0 | 9 |
| Meta Description | 100 | 0 | 0 | 9 |
| Security | 100 | 0 | 0 | 18 |
| Social | 100 | 0 | 0 | 18 |
| Structured Data | 100 | 0 | 0 | 8 |
| Titles | 100 | 0 | 0 | 1 |
| URL | 100 | 0 | 0 | 15 |
Findings
Warnings (5 rules)
warning Control has no accessible name
Rule agent.control_no_name · Agent Readiness · 9 occurrence(s)
- https://www.oosugakensetsu.com/ — 1 button/link(s) with no text or aria-label — an agent can't target them
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 2 button/link(s) with no text or aria-label — an agent can't target them
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 2 button/link(s) with no text or aria-label — an agent can't target them
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 2 button/link(s) with no text or aria-label — an agent can't target them
- https://www.oosugakensetsu.com/business — 1 button/link(s) with no text or aria-label — an agent can't target them
- https://www.oosugakensetsu.com/company — 1 button/link(s) with no text or aria-label — an agent can't target them
- https://www.oosugakensetsu.com/contact — 1 button/link(s) with no text or aria-label — an agent can't target them
- https://www.oosugakensetsu.com/recruit — 1 button/link(s) with no text or aria-label — an agent can't target them
- https://www.oosugakensetsu.com/works — 4 button/link(s) with no text or aria-label — an agent can't target them
warning Thin content (low word count)
Rule content.thin · Content · 9 occurrence(s)
- https://www.oosugakensetsu.com/ — 52 words
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 27 words
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 27 words
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 27 words
- https://www.oosugakensetsu.com/business — 57 words
- https://www.oosugakensetsu.com/company — 47 words
- https://www.oosugakensetsu.com/contact — 63 words
- https://www.oosugakensetsu.com/recruit — 90 words
- https://www.oosugakensetsu.com/works — 37 words
warning Missing <h1>
Rule h1.missing · Headings · 3 occurrence(s)
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx
warning Images missing alt text
Rule images.missing_alt · Images · 9 occurrence(s)
- https://www.oosugakensetsu.com/ — 2 of 17 images missing alt
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 1 of 7 images missing alt
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 1 of 12 images missing alt
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 1 of 9 images missing alt
- https://www.oosugakensetsu.com/business — 1 of 13 images missing alt
- https://www.oosugakensetsu.com/company — 1 of 8 images missing alt
- https://www.oosugakensetsu.com/contact — 1 of 6 images missing alt
- https://www.oosugakensetsu.com/recruit — 1 of 12 images missing alt
- https://www.oosugakensetsu.com/works — 1 of 16 images missing alt
warning Render-blocking script in <head> (no defer/async)
Rule perf.render_blocking · Performance · 9 occurrence(s)
- https://www.oosugakensetsu.com/ — 8 render-blocking <script> in <head> (add defer/async or use type=module)
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 8 render-blocking <script> in <head> (add defer/async or use type=module)
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 8 render-blocking <script> in <head> (add defer/async or use type=module)
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 8 render-blocking <script> in <head> (add defer/async or use type=module)
- https://www.oosugakensetsu.com/business — 8 render-blocking <script> in <head> (add defer/async or use type=module)
- https://www.oosugakensetsu.com/company — 8 render-blocking <script> in <head> (add defer/async or use type=module)
- https://www.oosugakensetsu.com/contact — 8 render-blocking <script> in <head> (add defer/async or use type=module)
- https://www.oosugakensetsu.com/recruit — 8 render-blocking <script> in <head> (add defer/async or use type=module)
- https://www.oosugakensetsu.com/works — 8 render-blocking <script> in <head> (add defer/async or use type=module)
Notices (23 rules)
notice Heading levels skip a level
Rule agent.heading_skip · Agent Readiness · 2 occurrence(s)
- https://www.oosugakensetsu.com/contact — h4 follows h2 — skips h3
- https://www.oosugakensetsu.com/works — h5 follows h2 — skips h3
notice No llms.txt for AI agents
Rule agent.llms_txt_missing · Agent Readiness · 1 occurrence(s)
- https://www.oosugakensetsu.com/ — 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 · 9 occurrence(s)
- https://www.oosugakensetsu.com/ — Cache-Control: no-cache, must-revalidate, max-age=0
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — Cache-Control: no-cache, must-revalidate, max-age=0
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — Cache-Control: no-cache, must-revalidate, max-age=0
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — Cache-Control: no-cache, must-revalidate, max-age=0
- https://www.oosugakensetsu.com/business — Cache-Control: no-cache, must-revalidate, max-age=0
- https://www.oosugakensetsu.com/company — Cache-Control: no-cache, must-revalidate, max-age=0
- https://www.oosugakensetsu.com/contact — Cache-Control: no-cache, must-revalidate, max-age=0
- https://www.oosugakensetsu.com/recruit — Cache-Control: no-cache, must-revalidate, max-age=0
- https://www.oosugakensetsu.com/works — Cache-Control: no-cache, must-revalidate, max-age=0
notice Duplicate meta description across pages
Rule duplicate.meta_desc · Duplicate · 6 occurrence(s)
- https://www.oosugakensetsu.com/ — meta description shared by 6 pages: https://www.oosugakensetsu.com/company, https://www.oosugakensetsu.com/business, https://www.oosugakensetsu.com/works
- https://www.oosugakensetsu.com/business — meta description shared by 6 pages: https://www.oosugakensetsu.com/, https://www.oosugakensetsu.com/company, https://www.oosugakensetsu.com/works
- https://www.oosugakensetsu.com/company — meta description shared by 6 pages: https://www.oosugakensetsu.com/, https://www.oosugakensetsu.com/business, https://www.oosugakensetsu.com/works
- https://www.oosugakensetsu.com/contact — meta description shared by 6 pages: https://www.oosugakensetsu.com/, https://www.oosugakensetsu.com/company, https://www.oosugakensetsu.com/business
- https://www.oosugakensetsu.com/recruit — meta description shared by 6 pages: https://www.oosugakensetsu.com/, https://www.oosugakensetsu.com/company, https://www.oosugakensetsu.com/business
- https://www.oosugakensetsu.com/works — meta description shared by 6 pages: https://www.oosugakensetsu.com/, https://www.oosugakensetsu.com/company, https://www.oosugakensetsu.com/business
notice Likely hero image lacks fetchpriority=high
Rule images.hero_no_fetchpriority · Performance · 9 occurrence(s)
- https://www.oosugakensetsu.com/ — the likely hero/LCP image (sp1.gif) 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.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — the likely hero/LCP image (sp1.gif) 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.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — the likely hero/LCP image (sp1.gif) 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.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — the likely hero/LCP image (sp1.gif) 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.oosugakensetsu.com/business — the likely hero/LCP image (sp1.gif) 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.oosugakensetsu.com/company — the likely hero/LCP image (sp1.gif) 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.oosugakensetsu.com/contact — the likely hero/LCP image (sp1.gif) 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.oosugakensetsu.com/recruit — the likely hero/LCP image (sp1.gif) 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.oosugakensetsu.com/works — the likely hero/LCP image (sp1.gif) 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 · 9 occurrence(s)
- https://www.oosugakensetsu.com/ — 15 of 17 images without width/height
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 5 of 7 images without width/height
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 10 of 12 images without width/height
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 7 of 9 images without width/height
- https://www.oosugakensetsu.com/business — 12 of 13 images without width/height
- https://www.oosugakensetsu.com/company — 7 of 8 images without width/height
- https://www.oosugakensetsu.com/contact — 5 of 6 images without width/height
- https://www.oosugakensetsu.com/recruit — 11 of 12 images without width/height
- https://www.oosugakensetsu.com/works — 12 of 16 images without width/height
notice Internal link has no anchor text / accessible name
Rule links.no_anchor_text · Links · 9 occurrence(s)
- https://www.oosugakensetsu.com/ — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- https://www.oosugakensetsu.com/business — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- https://www.oosugakensetsu.com/company — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- https://www.oosugakensetsu.com/contact — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- https://www.oosugakensetsu.com/recruit — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- https://www.oosugakensetsu.com/works — 4 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
notice Legacy <meta name=keywords> tag present (Google ignores it)
Rule meta.keywords_present · Content · 9 occurrence(s)
- https://www.oosugakensetsu.com/ — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- https://www.oosugakensetsu.com/business — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- https://www.oosugakensetsu.com/company — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- https://www.oosugakensetsu.com/contact — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- https://www.oosugakensetsu.com/recruit — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- https://www.oosugakensetsu.com/works — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
notice Meta description too short
Rule meta_desc.too_short · Meta Description · 9 occurrence(s)
- https://www.oosugakensetsu.com/ — 36 chars
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 36 chars
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 36 chars
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 36 chars
- https://www.oosugakensetsu.com/business — 36 chars
- https://www.oosugakensetsu.com/company — 36 chars
- https://www.oosugakensetsu.com/contact — 36 chars
- https://www.oosugakensetsu.com/recruit — 36 chars
- https://www.oosugakensetsu.com/works — 36 chars
notice Missing Open Graph tags
Rule og.missing · Social · 9 occurrence(s)
- https://www.oosugakensetsu.com/ — og:description
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — og:description
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — og:description
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — og:description
- https://www.oosugakensetsu.com/business — og:description
- https://www.oosugakensetsu.com/company — og:description
- https://www.oosugakensetsu.com/contact — og:description
- https://www.oosugakensetsu.com/recruit — og:description
- https://www.oosugakensetsu.com/works — og:description
notice Legacy image format (jpg/png/gif) with no next-gen fallback
Rule perf.images_legacy_format · Performance · 9 occurrence(s)
- https://www.oosugakensetsu.com/ — 16 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://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 7 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://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 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://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 9 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://www.oosugakensetsu.com/business — 13 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://www.oosugakensetsu.com/company — 8 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://www.oosugakensetsu.com/contact — 5 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://www.oosugakensetsu.com/recruit — 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://www.oosugakensetsu.com/works — 16 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 No ETag header (no conditional GET for unchanged pages)
Rule perf.no_etag · Performance · 9 occurrence(s)
- https://www.oosugakensetsu.com/ — 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://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 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://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 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://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 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://www.oosugakensetsu.com/business — 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://www.oosugakensetsu.com/company — 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://www.oosugakensetsu.com/contact — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- https://www.oosugakensetsu.com/recruit — 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://www.oosugakensetsu.com/works — 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 · 9 occurrence(s)
- https://www.oosugakensetsu.com/ — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 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.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 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.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 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.oosugakensetsu.com/business — 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.oosugakensetsu.com/company — 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.oosugakensetsu.com/contact — 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.oosugakensetsu.com/recruit — 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.oosugakensetsu.com/works — 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 · 1 occurrence(s)
- https://www.oosugakensetsu.com/ — 9155 ms
notice No structured data detected
Rule schema.none · Structured Data · 8 occurrence(s)
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx
- https://www.oosugakensetsu.com/business
- https://www.oosugakensetsu.com/company
- https://www.oosugakensetsu.com/contact
- https://www.oosugakensetsu.com/recruit
- https://www.oosugakensetsu.com/works
notice Missing recommended security headers
Rule security.missing_headers · Security · 9 occurrence(s)
- https://www.oosugakensetsu.com/ — HSTS, CSP, X-Content-Type-Options
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — HSTS, CSP, X-Content-Type-Options
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — HSTS, CSP, X-Content-Type-Options
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — HSTS, CSP, X-Content-Type-Options
- https://www.oosugakensetsu.com/business — HSTS, CSP, X-Content-Type-Options
- https://www.oosugakensetsu.com/company — HSTS, CSP, X-Content-Type-Options
- https://www.oosugakensetsu.com/contact — HSTS, CSP, X-Content-Type-Options
- https://www.oosugakensetsu.com/recruit — HSTS, CSP, X-Content-Type-Options
- https://www.oosugakensetsu.com/works — HSTS, CSP, X-Content-Type-Options
notice target=_blank link without rel=noopener (tab-napping)
Rule security.unsafe_cross_origin_links · Security · 9 occurrence(s)
- https://www.oosugakensetsu.com/ — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 2 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 2 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 2 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- https://www.oosugakensetsu.com/business — 3 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- https://www.oosugakensetsu.com/company — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- https://www.oosugakensetsu.com/contact — 2 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- https://www.oosugakensetsu.com/recruit — 3 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- https://www.oosugakensetsu.com/works — 3 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
notice Title tag is identical to the H1 (missed keyword variation)
Rule title.same_as_h1 · Titles · 1 occurrence(s)
- https://www.oosugakensetsu.com/ — the <title> and the H1 are identical — differentiate them to cover more query variation
notice Missing Twitter Card tag
Rule twitter.missing · Social · 9 occurrence(s)
- https://www.oosugakensetsu.com/
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx
- https://www.oosugakensetsu.com/business
- https://www.oosugakensetsu.com/company
- https://www.oosugakensetsu.com/contact
- https://www.oosugakensetsu.com/recruit
- https://www.oosugakensetsu.com/works
notice Non-ASCII characters in URL path
Rule url.non_ascii · URL · 3 occurrence(s)
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx
notice URL is very long
Rule url.too_long · URL · 3 occurrence(s)
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 145 chars
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD-2?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 143 chars
- https://www.oosugakensetsu.com/archives/a6abgzih9s7xam3cqlbe/%E6%BA%96%E5%82%99%E4%B8%AD?easys_page_id=15&easys_block_id=lblwpvgzqcf1n1do09gx — 141 chars
notice Underscores in URL path (prefer hyphens)
Rule url.underscores · URL · 6 occurrence(s)
- https://www.oosugakensetsu.com/60024235/wp-content/uploads/2024/08/49698_0-e1724820868815.jpg
- https://www.oosugakensetsu.com/60024235/wp-content/uploads/2024/08/49699_0-e1724818639407.jpg
- https://www.oosugakensetsu.com/60024235/wp-content/uploads/2024/08/49700_0-e1724820820714.jpg
- https://www.oosugakensetsu.com/60024235/wp-content/uploads/2024/08/S__18784599_0.jpg
- https://www.oosugakensetsu.com/60024235/wp-content/uploads/2024/08/S__18784603_0.jpg
- https://www.oosugakensetsu.com/60024235/wp-content/uploads/2024/08/S__18784627_0.jpg
notice Uppercase letters in URL path
Rule url.uppercase · URL · 3 occurrence(s)
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