TSEP Technical SEOEvidence Protocol
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SEO & AI Search Updates

What changes. At the source.

Official announcements. SEO and AI search, their sources and related TSEP controls.

tracked sources
50
retained announcements
180
RSS
Updated:

Filtered announcements.

2 results

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web.dev web performance

Experimental soft navigation metrics now available in CrUX

Field Core Web Vitals SPA routes and states
Evidence
Official publication
First detected
2026-11-05
Last seen in the source
2026-11-05
Topic
Measurement and Search Console
Status
Published

Added during the historical import.

Experimental soft navigation metrics now available in CrUX

Captures were made on the dates below, sometimes after first detection. Hashes apply to decompressed files. Compared text is a normalized extraction; the source capture retains the received bytes.

First capture · · Passage last seen on 2026-11-05

Source capture · Download (gzip) · SHA-256
2a15fd9891168bebaa2018e29971acd6c6a50e5167bb9e227ed5c40991889ee8
Compared text · Download (gzip) · SHA-256
9954048aa0993c2dab8e6fb91f576ad2cd8164c4646c11793fc718e7a99b1341

Existence timestamped by DigiCert on · Verify timestamp

Permalink

web.dev web performance

The Baseline Features audit is now available in Lighthouse

Lab tests
Evidence
Official publication
First detected
2026-11-05
Last seen in the source
2026-11-11
Topic
Measurement and Search Console
Status
Published

Added during the historical import.

Shortened excerpt · normalized text, not verbatim.

Learn which web features are used on a page—and their Baseline status—with the new Lighthouse Baseline…

The Baseline Features audit is now available in Lighthouse

Captures were made on the dates below, sometimes after first detection. Hashes apply to decompressed files. Compared text is a normalized extraction; the source capture retains the received bytes.

First capture · · Passage last seen on 2026-11-11

Source capture · Download (gzip) · SHA-256
9126bcb8db67c54bcd6e874820d8f1043f6a95fd65ddbac1cfd6f9e527ae053f
Compared text · Download (gzip) · SHA-256
89b94abf7f722555ecfe1a2884f8e918cd74f66b4eac2ed06dc07e6bf7990fab

Existence timestamped by DigiCert on · Verify timestamp

Permalink

Reference data

The registers.

Coverage check

What the feed missed.

2 / 3

events found

67 %

2 / 6 provider mentions found

Reports missed by month-end

Shared AI training preference

Google · Microsoft · OpenAI · Anthropic

Events and comparison sources

An event counts once when any of its official reports enters the collection. Each provider is counted separately. Later backfills preserve the month-end score.

Figures cover the sampled events only, compared with independent publications at the end of each month (UTC).

Directory · 50 tracked sources

Sources and coverage.

Google16 sources
Microsoft · Bing4 sources
AI and other platforms16 sources
  • Amazon search and AI crawlers · Hourly Last successful read ·
  • Anthropic crawlers and access · Hourly Last successful read · 1 archived publication Oct 2026
  • Apple Business local presence release notes · Nightly Last successful read · 5 archived publications May 2026 – Oct 2026
  • Apple Business locations and brands · Nightly Last successful read · 1 archived publication Mar 2026
  • Apple Applebot · Hourly Last successful read ·
  • ByteDance Bytespider and access · Nightly Last successful read ·
  • Common Crawl CCBot and access · Nightly Last successful read ·
  • DuckDuckGo DuckAssistBot · Nightly Last successful read ·
  • Grok (xAI) announcements and release notes · Hourly Last successful read · 9 archived publications Dec 2024 – May 2026
  • Grok (xAI) web search and sources · Hourly Last successful read ·
  • Meta crawlers and access · Hourly Last successful read ·
  • Mistral AI announcements · Hourly Last successful read · 6 archived publications Nov 2024 – Sep 2026
  • Mistral AI crawlers and access · Hourly Last successful read ·
  • OpenAI publisher announcements · Hourly Last successful read · 2 archived publications Jul 2026 – Oct 2026
  • OpenAI search crawlers · Hourly Last successful read ·
  • Perplexity search crawlers and access · Hourly Last successful read ·
Standards and institutions11 sources
Outside the default selection3 sources
  • Baidu search resource platform · Nightly Last successful read · 6 archived publications Sep 2026 – Nov 2026 Official source
  • Naver Search & Tech · Nightly Last successful read · 18 archived publications Jul 2026 – Nov 2026 Official source
  • Yandex webmaster news · Nightly Last successful read · 5 archived publications Aug 2026 – Oct 2026 Official source

Available archives vary by source. Changes to undated documentation pages are reviewed before they may appear in the feed.

Primary sources feed the editorial selection. Baidu, Naver and Yandex remain available by filter and in search.

The method

Facts. With context.

  1. Collect

    Critical sources are checked hourly; all sources are checked nightly. One record keeps the original title, published date and sources for each event. Undated documentation changes are held for review. The French and English RSS feeds support WebSub to notify compatible subscribers after publication.

  2. Classify

    A yellow square marks a change that may affect a TSEP check, access rule, diagnosis or deadline. Recurring publications and events remain background information. A yellow triangle identifies background news; a dashed circle means classification is pending. Translations are editorial.

  3. Review for TSEP

    Each month, the review connects announcements to relevant TSEP controls. For each item reviewed, the team decides whether the protocol already covers it, a change needs consideration, or monitoring should continue or close.

Impact explains practical consequences after human review in the displayed language. View adds a distinct editorial position: it is public only after personal approval, with the author’s name and reviewed language. AI-assisted proposals remain in the private workspace.

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