--- tool: Crawlinx SEO audit source: https://crawlinx.com domain: 5cm.fun report_url: "https://crawlinx.com/audit/5cm.fun" crawl_id: 20260723T011131-beb07c97 health_score: 65 generated_at: 2026-08-26T17:26:59Z total_pages: 6 html_pages: 6 indexable_pages: 6 errors: 0 warnings: 12 notices: 38 --- # SEO audit: 5cm.fun **Health score: 65/100** — needs attention > Audited by [Crawlinx](https://crawlinx.com) — the free technical-SEO crawler. Full report: https://crawlinx.com/audit/5cm.fun ## Overview | Metric | Value | | --- | --- | | Pages crawled | 6 | | HTML pages | 6 | | Indexable | 6 | | Non-indexable | 0 | | Orphan pages | 0 | | Broken internal links | 0 | | Avg response time | 3392 ms | | Errors / Warnings / Notices | 0 / 12 / 38 | | Status codes | 6×200 | ## Categories | Category | Score | Errors | Warnings | Notices | | --- | ---: | ---: | ---: | ---: | | Security | 70 | 0 | 6 | 6 | | Content | 80 | 0 | 4 | 5 | | Canonical | 95 | 0 | 1 | 1 | | Duplicate | 95 | 0 | 1 | 0 | | Agent Readiness | 100 | 0 | 0 | 5 | | Links | 100 | 0 | 0 | 2 | | Performance | 100 | 0 | 0 | 13 | | Sitemap | 100 | 0 | 0 | 2 | | Structured Data | 100 | 0 | 0 | 3 | | Titles | 100 | 0 | 0 | 1 | ## Issues ### Warnings (12) #### Interior page canonicalizes to the homepage - Rule: `canonical.points_to_homepage` · Category: Canonical · Occurrences: 1 - [https://5cm.fun/index.html](https://5cm.fun/index.html) — this interior page canonicalizes to the homepage (https://5cm.fun/) — Google will treat the homepage as authoritative and drop this page from search. Point the canonical at the page's own URL. #### Thin content (low word count) - Rule: `content.thin` · Category: Content · Occurrences: 4 - [https://5cm.fun/compliance.html](https://5cm.fun/compliance.html) — 92 words - [https://5cm.fun/download.html](https://5cm.fun/download.html) — 107 words - [https://5cm.fun/toolkit/](https://5cm.fun/toolkit/) — 146 words - [https://5cm.fun/weather.html](https://5cm.fun/weather.html) — 166 words #### Homepage duplicated across protocol/host variants (no redirect) - Rule: `duplicate.protocol_host` · Category: Duplicate · Occurrences: 1 - [https://5cm.fun/](https://5cm.fun/) — http://5cm.fun/ serves the same homepage content with a 200 and no redirect — Google sees a duplicate. Pick one canonical host/scheme and 301-redirect the others. #### Content-Type header doesn't match the actual content - Rule: `headers.content_type_mismatch` · Category: Security · Occurrences: 6 - [https://5cm.fun/](https://5cm.fun/) — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8". - [https://5cm.fun/compliance.html](https://5cm.fun/compliance.html) — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8". - [https://5cm.fun/download.html](https://5cm.fun/download.html) — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8". - [https://5cm.fun/index.html](https://5cm.fun/index.html) — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8". - [https://5cm.fun/toolkit/](https://5cm.fun/toolkit/) — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8". - [https://5cm.fun/weather.html](https://5cm.fun/weather.html) — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8". ### Notices (38) #### Heading levels skip a level - Rule: `agent.heading_skip` · Category: Agent Readiness · Occurrences: 4 - [https://5cm.fun/](https://5cm.fun/) — h4 follows h2 — skips h3 - [https://5cm.fun/compliance.html](https://5cm.fun/compliance.html) — h4 follows h2 — skips h3 - [https://5cm.fun/index.html](https://5cm.fun/index.html) — h4 follows h2 — skips h3 - [https://5cm.fun/weather.html](https://5cm.fun/weather.html) — h4 follows h2 — skips h3 #### No llms.txt for AI agents - Rule: `agent.llms_txt_missing` · Category: Agent Readiness · Occurrences: 1 - [https://5cm.fun/](https://5cm.fun/) — no llms.txt found at the site root — add one so AI agents get a curated site summary #### Canonical points to a different URL - Rule: `canonical.non_self` · Category: Canonical · Occurrences: 1 - [https://5cm.fun/index.html](https://5cm.fun/index.html) — canonical=https://5cm.fun/ #### Likely hero image lacks fetchpriority=high - Rule: `images.hero_no_fetchpriority` · Category: Performance · Occurrences: 6 - [https://5cm.fun/](https://5cm.fun/) — the likely hero/LCP image (fisher-screen-1.webp) 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://5cm.fun/compliance.html](https://5cm.fun/compliance.html) — the likely hero/LCP image (dyllogo.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://5cm.fun/download.html](https://5cm.fun/download.html) — the likely hero/LCP image (icon-weather.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://5cm.fun/index.html](https://5cm.fun/index.html) — the likely hero/LCP image (fisher-screen-1.webp) 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://5cm.fun/toolkit/](https://5cm.fun/toolkit/) — the likely hero/LCP image (icon-weather-app.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://5cm.fun/weather.html](https://5cm.fun/weather.html) — the likely hero/LCP image (app-screen-1.webp) 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. #### Page has only one internal inlink (fragile crawl path) - Rule: `links.single_inlink` · Category: Links · Occurrences: 2 - [https://5cm.fun/download.html](https://5cm.fun/download.html) — only one internal link points here — if that source changes, this page becomes an orphan. Add more contextual internal links to strengthen the crawl path. - [https://5cm.fun/toolkit/](https://5cm.fun/toolkit/) — only one internal link points here — if that source changes, this page becomes an orphan. Add more contextual internal links to strengthen the crawl path. #### Legacy tag present (Google ignores it) - Rule: `meta.keywords_present` · Category: Content · Occurrences: 5 - [https://5cm.fun/](https://5cm.fun/) — a tag is present — Google has ignored it since 2009; remove it to cut template debt - [https://5cm.fun/compliance.html](https://5cm.fun/compliance.html) — a tag is present — Google has ignored it since 2009; remove it to cut template debt - [https://5cm.fun/download.html](https://5cm.fun/download.html) — a tag is present — Google has ignored it since 2009; remove it to cut template debt - [https://5cm.fun/index.html](https://5cm.fun/index.html) — a tag is present — Google has ignored it since 2009; remove it to cut template debt - [https://5cm.fun/weather.html](https://5cm.fun/weather.html) — a tag is present — Google has ignored it since 2009; remove it to cut template debt #### Legacy image format (jpg/png/gif) with no next-gen fallback - Rule: `perf.images_legacy_format` · Category: Performance · Occurrences: 6 - [https://5cm.fun/](https://5cm.fun/) — 8 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://5cm.fun/compliance.html](https://5cm.fun/compliance.html) — 4 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://5cm.fun/download.html](https://5cm.fun/download.html) — 8 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://5cm.fun/index.html](https://5cm.fun/index.html) — 8 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://5cm.fun/toolkit/](https://5cm.fun/toolkit/) — 2 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://5cm.fun/weather.html](https://5cm.fun/weather.html) — 4 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. #### Slow server response - Rule: `perf.slow_response` · Category: Performance · Occurrences: 1 - [https://5cm.fun/](https://5cm.fun/) — 15755 ms #### FAQPage structured data (rich result removed May 2026) - Rule: `schema.faq_deprecated` · Category: Structured Data · Occurrences: 2 - [https://5cm.fun/compliance.html](https://5cm.fun/compliance.html) — FAQPage structured data is present — Google removed FAQ rich results on 7 May 2026 (except for authoritative government/health sites). The markup is harmless but earns no SERP enhancement; remove it during template maintenance. - [https://5cm.fun/weather.html](https://5cm.fun/weather.html) — FAQPage structured data is present — Google removed FAQ rich results on 7 May 2026 (except for authoritative government/health sites). The markup is harmless but earns no SERP enhancement; remove it during template maintenance. #### No structured data detected - Rule: `schema.none` · Category: Structured Data · Occurrences: 1 - [https://5cm.fun/toolkit/](https://5cm.fun/toolkit/) #### Missing recommended security headers - Rule: `security.missing_headers` · Category: Security · Occurrences: 6 - [https://5cm.fun/](https://5cm.fun/) — HSTS, CSP, X-Content-Type-Options - [https://5cm.fun/compliance.html](https://5cm.fun/compliance.html) — HSTS, CSP, X-Content-Type-Options - [https://5cm.fun/download.html](https://5cm.fun/download.html) — HSTS, CSP, X-Content-Type-Options - [https://5cm.fun/index.html](https://5cm.fun/index.html) — HSTS, CSP, X-Content-Type-Options - [https://5cm.fun/toolkit/](https://5cm.fun/toolkit/) — CSP, X-Content-Type-Options, HSTS - [https://5cm.fun/weather.html](https://5cm.fun/weather.html) — CSP, X-Content-Type-Options, HSTS #### Indexable page not listed in sitemap - Rule: `sitemap.orphan_not_listed` · Category: Sitemap · Occurrences: 2 - [https://5cm.fun/compliance.html](https://5cm.fun/compliance.html) — indexable but not in sitemap - [https://5cm.fun/toolkit/](https://5cm.fun/toolkit/) — indexable but not in sitemap #### Title is very short - Rule: `title.too_short` · Category: Titles · Occurrences: 1 - [https://5cm.fun/toolkit/](https://5cm.fun/toolkit/) — 14 chars ## Checks & coverage Crawlinx ran **157 technical-SEO checks** across 27 categories. Categories marked ✓ are fully clean. - ✗ Agent Readiness — 5 notice(s) - ✓ AI Content — clean - ✓ Amp — clean - ✓ Budget — clean - ✓ Cache — clean - ✗ Canonical — 1 warning(s), 1 notice(s) - ✗ Content — 4 warning(s), 5 notice(s) - ✓ Crawlability — clean - ✗ Duplicate — 1 warning(s) - ✓ Geo — clean - ✓ Headings — clean - ✓ Hreflang — clean - ✓ Images — clean - ✓ Indexability — clean - ✗ Links — 2 notice(s) - ✓ Meta Description — clean - ✓ Mobile — clean - ✗ Performance — 13 notice(s) - ✓ Rendering — clean - ✓ Robots — clean - ✗ Security — 6 warning(s), 6 notice(s) - ✗ Sitemap — 2 notice(s) - ✓ Social — clean - ✗ Structured Data — 3 notice(s) - ✗ Titles — 1 notice(s) - ✓ URL — clean - ✓ Video — clean --- *Generated by [Crawlinx](https://crawlinx.com) · free technical-SEO audits · https://crawlinx.com/audit/5cm.fun* ## 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