Seo crawl render

Skill Hainrixz/claude-seo-ai/skills/seo-crawl-render

Fetch a page (or local files) and build the shared PageSnapshot every audit module reads — raw HTML, rendered DOM when a render MCP is available, response headers, status/redirect chain, and site artifacts (robots.txt, sitemaps, llms.txt). Decides whether JavaScript rendering is needed and records the data tier.From its SKILL.md

Install

npx -y skills add Hainrixz/claude-seo-ai --skill seo-crawl-render

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

One thing to look at

fetches URLsInstructs the agent to fetch 3 URLs, including robots.txt and 2 more.

SKILL.md

2.6 KB, 574 tokens by cl100k_base, as published. Nobody here has run it

seo-crawl-render

Produces ONE PageSnapshot consumed by all other skills. Building it once is what makes the offline (Tier 0) audit possible.

PageSnapshot shape

{
  target: { kind: "url"|"path", value },
  status_chain: [ {url, status, location?} ],   // redirects, final status
  headers: { ... },                              // final response headers (incl. X-Robots-Tag, content-type, hreflang Link)
  raw_html: "...",                               // pre-JS HTML the crawler/AI sees first
  rendered_dom: "..."|null,                      // post-JS DOM (null if no render available)
  render: { needed: bool, used: "webfetch"|"playwright"|"firecrawl"|"none", confidence: "high"|"reduced" },
  artifacts: { robots_txt: "..."|null, sitemaps: [...], llms_txt: "..."|null },
  tier: 0|1|2
}

Acquisition

Local path: read files directly (Read/Glob); treat built HTML as raw_html. For framework source (Next/Nuxt/etc.), note the framework and that rendered output may differ from source.
URL: fetch with WebFetch (HTTPS-upgrade; if it returns a cross-host redirect, re-fetch the target). Capture status chain and headers. Fetch robots.txt, referenced sitemap(s), and /llms.txt.

Render decision

--render static → never render. --render js → always try to render.
--render auto (default): flag CSR when the raw HTML body is near-empty, has hydration markers (__NEXT_DATA__, window.__NUXT__, data-reactroot, a single root <div id="app">), or primary content/headings/links/JSON-LD are absent from raw_html.
If rendering is needed AND a render MCP is available (Playwright/Firecrawl — discover via tool search), get the rendered_dom; set render.confidence = high.
If needed but no render MCP: keep rendered_dom = null, set render.confidence = reduced, and emit an M4 finding: "CSR-only; audited from raw HTML; install a Playwright/Firecrawl MCP for full coverage." Never pretend you saw rendered content you didn't.

Tier

Set tier = 0 (WebFetch only), 1 (render MCP and/or PageSpeed available), 2 (Search Console / Merchant available). Downstream skills annotate findings needs_api when they require a higher tier than reached.

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.

Gives 0 of the 12 instructions most marketing audience skills give in 574 tokens

Counted across 690 of the 894 authors here whose files we hold, read 2026-08-07

Apply Poppins font to headingsin 41 of 690, across 6 files
Apply Lora font to body textin 41 of 690, across 6 files
Use Arial fallback for headingsin 39 of 690, across 4 files
Use Georgia fallback for body textin 39 of 690, across 4 files
Maintain text hierarchy and formattingin 39 of 690, across 4 files
Use accent colors for non-text shapesin 38 of 690, across 3 files
Use RGB values for precise color matchingin 38 of 690, across 3 files
Use brand colors for primary text and backgroundsin 36 of 690, across 1 file
Read product marketing context file before asking questions, starting, or auditingin 35 of 690, across 23 files
Use active voice instead of passive voicein 26 of 690, across 10 files
Implement or generate appropriate JSON-LD structured datain 24 of 690, across 17 files
Prioritize clarity over clevernessin 22 of 690, across 8 files

Said here and by no other author read

Build exactly one PageSnapshot object
Fetch URLs using WebFetch with HTTPS upgrade
Re-fetch after cross-host redirects
Never render when render is set to static
Always render when render is set to js
Flag CSR for near-empty raw HTML or hydration markers

Grouped from the skills themselves: near-identical wordings counted once, and counted by distinct author, so one author publishing three of these counts once. Length counted with cl100k_base; the agent that loads this file may tokenize it differently.