Jest
Last scanned jestjs.ioDocusaurus15 pages tested
AI agents have real trouble using these docs. Start with the top fixes. Jest scores 59 out of 100 (grade F), passing 11 of 18 checks. 7 still need work.
The score is held at 59 because no llms.txt was found, and a site without one cannot score higher.
Developer docs
Kind of site
11/18
Checks passed
2
Partly passed
5
Failed
Access
Content discoverability3 failed
llms.txt exists
No llms.txt found at any candidate location (https://jestjs.io/llms.txt, https://jestjs.io/docs/llms.txt)
Create an llms.txt file at your site root containing an H1 title, a blockquote summary, and markdown links to your key documentation pages. This is the single highest-impact improvement for agent access to your docs.
Check your fix:
curl -sI https://jestjs.io/llms.txtreturns 200 with a text content type.Pages point agents to llms.txt
No llms.txt directive found in HTML of any of 15 sampled pages
No agent-facing directive pointing to llms.txt was detected in the HTML of any tested page. Add a visually-hidden element near the top of each page (e.g., a div with CSS clip-rect) containing a link to your llms.txt. If your site serves markdown versions of pages, mention that in the directive too so agents know to request it.
Check your fix:
curl -s https://jestjs.io/ | grep -n llms.txtfinds the link near the top of the HTML.Markdown pages point agents to llms.txt
Could not fetch markdown for any of 15 pages; 15 had no markdown version
No llms.txt directive was detected in the markdown of any tested page. Add a blockquote near the top of each markdown page (e.g., "> For the complete documentation index, see [llms.txt](/llms.txt)").
Check your fix: The Markdown version of https://jestjs.io/ (its .md URL, or the page fetched with
Accept: text/markdown) has the llms.txt line in its first few lines.llms.txt follows the standard structure
Skipped: dependency check did not pass
llms.txt fits in an agent's context
Skipped: dependency check did not pass
llms.txt links work
Skipped: dependency check did not pass
llms.txt links point to Markdown
Skipped: dependency check did not pass
Markdown availability2 failed
Pages are available as Markdown
No sampled pages support .md URLs (0/15 tested)
Your pages don't return markdown when .md is appended to the URL. Configure your docs platform to serve .md variants for all documentation pages.
Check your fix:
curl -sI https://jestjs.io/.mdreturns 200 with a text/markdown or text/plain content type.Server returns Markdown when asked
Server ignores Accept: text/markdown header (0/15 sampled pages return markdown)
Your server ignores Accept: text/markdown and returns HTML. Some agents (Claude Code, Cursor, OpenCode) request markdown this way. Configure your server to honor content negotiation.
Check your fix:
curl -sI -H "Accept: text/markdown" https://jestjs.io/returnscontent-type: text/markdown.
Page size and truncation2 passed1 partly
Content starts near the top
14 of 15 sampled pages have content starting at 10–50% (worst 45%)
14 of 15 pages have documentation content starting 10-50% into the converted output. Reduce navigation, breadcrumb, and sidebar markup that precedes the content area.
Markdown pages fit in context
Skipped: dependency check did not pass
Content is in the HTML without JavaScript
All 15 sampled pages contain server-rendered content
HTML pages fit in context
All 15 sampled pages under 50K chars (median 42K HTML → 8K markdown (79% boilerplate))
Content structure1 passed
Headings inside tabs name their variant
3 page(s) with tabs found, but no section headers inside tab panels to evaluate
Code blocks are well-formed
Site does not serve markdown content; nothing to analyze
Tabs don't bloat the page
9 tab group(s) across 3 of 15 sampled pages; all serialize under 50K chars
URL stability2 passed
Missing pages return a real 404
All 15 sampled pages return proper error codes for bad URLs
Redirects stay on the same host
No redirects detected across 15 sampled pages
Content health1 passed
llms.txt covers the whole site
Skipped: dependency check did not pass
Markdown matches the HTML page
Skipped: dependency check did not pass
Cache headers allow timely updates
All 15 endpoints have appropriate cache headers
Authentication and access1 passed
Gated docs offer another way in
All docs pages are publicly accessible; no alternative access paths needed
Docs are readable without logging in
All 15 sampled pages are publicly accessible
Crawler access2 passed
Crawlers and AI assistants may read the docs
robots.txt lets Googlebot, Bingbot, OAI-SearchBot, PerplexityBot, Claude-SearchBot and Claude-User read the docs.
Sitemap lists the docs pages
The sitemap at https://jestjs.io/sitemap.xml lists 32 of the 32 docs pages found through llms.txt and page links.
Freshness
Maintenance2 passed1 partly
Links and section anchors work
2 of 53 references checked on the sampled pages are broken: 1 link and 1 section anchor. 7 more could not be verified (timeouts or blocked requests) and are not counted.
Fix or remove the broken links, redirect moved pages to their new address, and restore or retarget section anchors. Agents follow links to gather context, and a dead link ends that path.
Check your fix: Every link on https://flowtype.org/ (host not found) linked from https://jestjs.io/blog/2016/06/22/jest-13 returns 200, and every
#sectionlink points at an element with that id.Pages say when they were last changed
14 of 15 sampled pages state when they were last changed.
Sitemap entries still exist
All 10 sitemap entries sampled still exist.
Consistency with the API specNot applicable
Endpoints in the docs exist in the API spec
No OpenAPI description was found, so the docs could not be compared with a spec.
CurrencyNot applicable
Deprecated operations are marked as such
No OpenAPI description was found, so deprecation notices could not be compared with a spec.
Additional checks
Not part of the score: optional extras that help agents use your docs.
MCP server is discoverable
No MCP server was found for these docs.
Offer a read-only MCP server with a search tool over your docs, and link it from llms.txt, so agents in Cursor, Claude and ChatGPT can query your docs directly.
llms-full.txt is available
No llms-full.txt found at https://jestjs.io/llms-full.txt.
Publish /llms-full.txt with the full text of your docs in Markdown, so an agent can load everything in one request instead of crawling page by page.
Check your fix:
curl -sI https://jestjs.io/llms-full.txtreturns 200.Agent skills are published
No agent skills index was found at /.well-known/agent-skills/index.json.
Publish an Agent Skills index at /.well-known/agent-skills/index.json with a SKILL.md for your main tasks, so agents can load task instructions without reading every page.
About this scan
- Scanned
- Oct 21, 2026
- Pages tested
- 15 of 69 found
- Platform
- Docusaurus
- Kind of site
- Developer docs
- AFDocs score, on its own
- 58 (F), 7 of 23 checks pass
- Based on 15 sampled pages, chosen deterministically from the sitemap and llms.txt. Pages outside the sample were not read.
- Pages were fetched without running JavaScript, the way most AI agents read the web.
- robots.txt stopped the scanner from reading 7 URLs; checks that needed them are unverified.
- Answerability, where an AI agent answers real questions written from these pages, runs in the open-source scanner with your own API key. This web score is made of Access and Freshness.
Methodology 2026-09.6 · AFDocs 0.20.0
Pages we sampled (15)
- https://jestjs.io/
- https://jestjs.io/blog/2016/06/22/jest-13
- https://jestjs.io/blog/2017/01/30/a-great-developer-experience
- https://jestjs.io/blog/2018/05/29/jest-23-blazing-fast-delightful-testing
- https://jestjs.io/blog/2021/03/09/jest-website-upgrade
- https://jestjs.io/blog/2025/06/04/jest-30
- https://jestjs.io/blog/page/3
- https://jestjs.io/docs/bypassing-module-mocks
- https://jestjs.io/docs/dynamodb
- https://jestjs.io/docs/getting-started
- https://jestjs.io/docs/migration-guide
- https://jestjs.io/docs/more-resources
- https://jestjs.io/docs/testing-frameworks
- https://jestjs.io/docs/tutorial-jquery
- https://jestjs.io/docs/watch-plugins
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