Search Docs Diff

See the exact words that changed in the docs and rules you build against.

Availability. Coming soon: the weekly digest sign-up is not open yet, so the form below is switched off. Nothing is sold.

The rules you build against change quietly. Search Docs Diff watches the documentation pages that matter to site owners and to extension, app and agent builders, and shows you the exact words that changed, with a link to the source.

Regulation Radar does the same for primary-source regulation pages. Today that is the FTC, the California privacy agencies and Attorney General, CMS, DOJ, the EU AI Act timeline, the Virginia and Washington statutes, and the PCI Security Standards Council (18 pages). HHS OCR, the New York and California auto-renewal statutes and Texas are on the list but blocked or not static yet, so they are not watched.

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What you get

  • More than 50 curated pages (52 in the current source list): Google Search Central and its crawler docs (including Google-Extended), Bing, schema.org, the OpenAI, Anthropic and Perplexity crawler docs, and the Chrome Web Store, Shopify, Atlassian and Apify policies.
  • Every change shown as the quoted lines that were added and removed, with the page link.
  • Where a summary is shown it is labelled “AI-drafted summary of the quoted change: read the quoted text”, and it appears only after an automatic check confirms that its quotes are really in the change. Otherwise you get the quote alone. The automatic check confirms quotes, numbers, dates and links; it cannot catch a summary that overstates a change in plain words (for example “mandatory” where the page says “recommended”), so read the quote.

Pro and Team (coming)

Real-time alerts by email and signed webhooks, the full archive and a private RSS feed. Pricing: to be announced. It is published here when it is set, not before.

Sample archive

SAMPLE Every page, company and change in this section is invented, built from fixture data to show the format. It is not a real change by any real company or agency. The addresses shown are example domains and are not links.

Free readers will see changes 7 days after they are detected; Pro will show them in real time. AI-drafted summary of the quoted change: read the quoted text.

ExampleBot crawler documentation (sample)

SAMPLE Example Search · 2026-10-22 · Search Docs Diff

AI-drafted summary of the quoted change: read the quoted text. The page now allows 5 redirect hops where it said 3, and adds a 500 KiB size limit. Who is affected: sites that redirect their robots.txt file or serve a very large one.

Now says (added)

ExampleBot follows at most 5 redirect hops in a row when it fetches a robots.txt file.

The robots.txt file size limit is 500 KiB; content after that limit is ignored.

Used to say (removed)

ExampleBot follows at most 3 redirect hops in a row when it fetches a robots.txt file.

Source: docs.example.org/examplebot

Example Agency: automatic renewal rule (sample)

SAMPLE Example Agency · 2026-10-21 · Regulation Radar · US

AI-drafted summary of the quoted change: read the quoted text. The reminder-notice period before a free trial converts changed from 3 days to 7 days. Who is affected: sellers of subscriptions that start with a free trial.

Now says (added)

A seller must send a reminder notice at least 7 days before a free trial becomes a paid subscription.

Used to say (removed)

A seller must send a reminder notice at least 3 days before a free trial becomes a paid subscription.

Source: rules.example.state.zz.us/auto-renewal

Example Marketplace listing policy (sample)

SAMPLE Example Marketplace · 2026-10-20 · Search Docs Diff

No AI summary for this change: showing the quoted change only.

Now says (added)

Listings must not use the words best or number one unless the claim can be shown.

Screenshots may not show prices.

Used to say (removed)

Listings should avoid superlatives.

Source: market.example.net/listing-policy

The third sample shows what a change looks like when the AI note fails the automatic checks: the quoted change is shown on its own, with no summary.

Privacy · Terms

How this was made

Built by Agent Harbor LLC. The code and the wording of this page were drafted with AI assistance. Brian Yandell owns and supports Search Docs Diff.

Technical evidence of observed behavior on the date tested. Not legal advice and not a certification of compliance. Summaries are AI-drafted and may be wrong: read the quoted text and the source page.