Zapier

llms.txt fits in an agent's context

llms.txt is 54,963 characters (between 50,000 and 100,000; consider splitting)

llms.txt links work

All 15 same-origin sampled links resolve (358 total links) (4 external links also failed; may be bot-detection or rate-limiting)

llms.txt exists

llms.txt found at https://docs.zapier.com/llms.txt

llms.txt follows the standard structure

llms.txt follows the proposed structure (H1, blockquote, heading-delimited link sections)

llms.txt links point to Markdown

15/15 same-origin sampled links point to markdown content (100%) (21 external links excluded)

Pages point agents to llms.txt

llms.txt directive found in HTML of all 15 sampled pages, near the top of content

Markdown pages point agents to llms.txt

llms.txt directive found in markdown of all 15 sampled pages, near the top of content

Pages are available as Markdown

15/15 sampled pages support .md URLs (100%)

Server returns Markdown when asked

15/15 sampled pages support content negotiation (100%)

Content is in the HTML without JavaScript

All 15 sampled pages contain server-rendered content

Markdown pages fit in context

All 15 pages under 50K chars (median 4K, max 20K)

HTML pages fit in context

All 15 sampled pages under 50K chars (median 473K HTML → 10K markdown (98% boilerplate))

Content starts near the top

Content starts within first 10% on all 15 sampled pages (median 2%)

Headings inside tabs name their variant

1 page(s) with tabs found, but no section headers inside tab panels to evaluate

Tabs don't bloat the page

1 tab group(s) across 1 of 15 sampled pages; all serialize under 50K chars

Code blocks are well-formed

All 26 code fences properly closed across 16 pages

Missing pages return a real 404

All 15 sampled pages return proper error codes for bad URLs

Redirects stay on the same host

All 1 redirect(s) across 15 sampled pages are same-host HTTP redirects

Markdown matches the HTML page

1 of 15 pages have substantive content differences between markdown and HTML (avg 4% missing)

llms.txt covers the whole site

llms.txt covers 342/395 sitemap doc pages (87%); 53 missing; 24 llms.txt links not in sitemap (may indicate stale links or incomplete sitemap)

Cache headers allow timely updates

All 16 endpoints have appropriate cache headers

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

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://docs.zapier.com/sitemap.xml lists 331 of the 340 docs pages found through llms.txt and page links.

Links and section anchors work

3 of 58 references checked on the sampled pages are broken: 0 links and 3 section anchors. 1 more could not be verified (timeouts or blocked requests) and is not counted.

Pages say when they were last changed

14 of 15 sampled pages state when they were last changed, and 1 more has a date only in the sitemap.

Sitemap entries still exist

All 10 sitemap entries sampled still exist.

Endpoints in the docs exist in the API spec

2 of 2 endpoints mentioned in the docs are not in https://docs.zapier.com/powered-by-zapier/api-reference/promotions-openapi.yaml.

Deprecated operations are marked as such

https://docs.zapier.com/powered-by-zapier/api-reference/promotions-openapi.yaml marks no operation as deprecated, so there is nothing to compare.