Search Central LiveDeep Dive Europe 2026

Knowledge base v2.13.0 · Community edition · data through 2 October 2026

References

Sources

Every document used to check the claims, with the date it was last read, the claims it backs by grade and the developer requirements it documents. Documentation changes: re-check the live page before relying on it.

Google documentation 230

Google’s own pages, used to verify what was said at the event.

A guide to Google Search ranking systems

Google Search Central · checked 3 October 2026

https://developers.google.com/search/docs/appearance/ranking-systems-guide

Backs 37 claims, by grade

AI features and your website

Google Search Central · checked 3 October 2026

https://developers.google.com/search/docs/appearance/ai-features

Backs 30 claims, by grade

Documentsrequirements DEV-IDX-05, DEV-AIF-01, DEV-AIF-02

An update on web publisher controls

The Keyword, Google blog (28 September 2023, Danielle Romain) · checked 4 October 2026

https://blog.google/technology/ai/an-update-on-web-publisher-controls/

Backs 1 claim, by grade

API Reference

Google Search Console API documentation · checked 3 October 2026

https://developers.google.com/webmaster-tools/v1/api_reference_index

Backs 2 claims, by grade

ARIA and HTML

web.dev (Google) · checked 3 October 2026

https://web.dev/learn/accessibility/aria-html

Backs 2 claims, by grade

Documentsrequirement DEV-HTM-04

Ask Google to recrawl your URLs

Google Search Central · checked 3 October 2026

https://developers.google.com/search/docs/crawling-indexing/ask-google-to-recrawl

Backs 1 claim, by grade

Creating helpful, reliable, people-first content

Google Search Central · checked 3 October 2026

https://developers.google.com/search/docs/fundamentals/creating-helpful-content

Backs 33 claims, by grade

Documentsrequirements DEV-SPM-02, DEV-SPM-05

Fix Search-related JavaScript problems

Google Search Central · checked 2 October 2026

https://developers.google.com/search/docs/crawling-indexing/javascript/fix-search-javascript

Backs 27 claims, by grade

Documentsrequirements DEV-URL-02, DEV-URL-03, DEV-REN-06, DEV-REN-08, DEV-REN-09, DEV-REN-10, DEV-ERR-02, DEV-MON-02, DEV-MON-05

General Guidelines

Google Search Quality Rater Guidelines (PDF, 11 September 2025) · checked 3 October 2026

https://static.googleusercontent.com/media/guidelines.raterhub.com/en//searchqualityevaluatorguidelines.pdf

Backs 32 claims, by grade

Documentsrequirements DEV-HTM-01, DEV-SPM-05

Google Search Status Dashboard

Google Search Status Dashboard (September 2026 spam update) · checked 3 October 2026

https://status.search.google.com/incidents/XhUDXP7A67iHCD2kmbVu

Backs 2 claims, by grade

google/robotstxt

Google (open-source robots.txt parser and matcher library, GitHub) · checked 4 October 2026

https://github.com/google/robotstxt

Backs 1 claim, by grade

Documentsrequirements DEV-SRV-05, DEV-SRV-10

How Google interprets the robots.txt specification

Google · checked 4 October 2026

https://developers.google.com/crawling/docs/robots-txt/robots-txt-spec

Backs 31 claims, by grade

Documentsrequirements DEV-SRV-04, DEV-SRV-05, DEV-SRV-06, DEV-SRV-10, DEV-URL-05, DEV-IDX-02, DEV-CAN-11, DEV-AIF-05

How HTTP status codes affect Google's crawlers

Google · checked 4 October 2026

https://developers.google.com/crawling/docs/troubleshooting/http-status-codes

Backs 32 claims, by grade

Documentsrequirements DEV-SRV-02, DEV-SRV-03, DEV-SRV-09, DEV-CAN-01, DEV-CAN-10, DEV-ERR-01, DEV-ERR-03

How to specify a canonical URL with rel="canonical" and other methods

Google Search Central · checked 3 October 2026

https://developers.google.com/search/docs/crawling-indexing/consolidate-duplicate-urls

Backs 31 claims, by grade

Documentsrequirements DEV-URL-05, DEV-URL-11, DEV-CAN-02, DEV-CAN-03, DEV-CAN-04, DEV-CAN-05, DEV-CAN-06, DEV-INT-08, DEV-MON-06

Image sitemaps

Google Search Central · checked 2 October 2026

https://developers.google.com/search/docs/crawling-indexing/sitemaps/image-sitemaps

Backs 1 claim, by grade

Documentsrequirement DEV-IMG-04

In-depth guide to how Google Search works

Google Search Central · checked 3 October 2026

https://developers.google.com/search/docs/fundamentals/how-search-works

Backs 63 claims, by grade

Documentsrequirements DEV-URL-04, DEV-HTM-01, DEV-HTM-03

Introduction to structured data markup in Google Search

Google Search Central · checked 3 October 2026

https://developers.google.com/search/docs/appearance/structured-data/intro-structured-data

Backs 20 claims, by grade

Documentsrequirements DEV-SDA-01, DEV-SDA-02, DEV-SDA-03, DEV-SDA-11, DEV-VID-03

Learn about sitemaps

Google Search Central · checked 3 October 2026

https://developers.google.com/search/docs/crawling-indexing/sitemaps/overview

Backs 2 claims, by grade

llms.txt

Chrome for Developers · checked 3 October 2026

https://developer.chrome.com/docs/lighthouse/agentic-browsing/llms-txt

Backs 2 claims, by grade

Documentsrequirement DEV-AIF-02

Long context

Google AI for Developers (Gemini API docs) · checked 3 October 2026

https://ai.google.dev/gemini-api/docs/long-context

Backs 3 claims, by grade

Documentsrequirement DEV-AIF-03

Manage your Search profile

Google Search Help · checked 2 October 2026

https://support.google.com/websearch/answer/16904750?hl=en

Backs 1 claim, by grade

Managing multi-regional and multilingual sites

Google Search Central · checked 3 October 2026

https://developers.google.com/search/docs/specialty/international/managing-multi-regional-sites

Backs 23 claims, by grade

Documentsrequirements DEV-INT-01, DEV-INT-02, DEV-INT-07, DEV-INT-08, DEV-INT-09

New robots tag: indexifembedded

Search Central blog (21 January 2022) · checked 2 October 2026

https://developers.google.com/search/blog/2022/01/robots-meta-tag-indexifembedded

Backs 1 claim, by grade

Documentsrequirement DEV-REN-10

October 2023 Spam Update

Search Central blog (4 October 2023) · checked 3 October 2026

https://developers.google.com/search/blog/2023/10/october-2023-spam-update

Backs 3 claims, by grade

Optimize your crawl budget

Google · checked 4 October 2026

https://developers.google.com/crawling/docs/crawl-budget

Backs 56 claims, by grade

Documentsrequirements DEV-SRV-08, DEV-URL-05, DEV-URL-08, DEV-IDX-02, DEV-CAN-01, DEV-ERR-01, DEV-PRF-01, DEV-MON-03, DEV-MON-04, DEV-MON-11

Optimizing your website for generative AI features on Google Search

Google Search Central · checked 3 October 2026

https://developers.google.com/search/docs/fundamentals/ai-optimization-guide

Backs 54 claims, by grade

Documentsrequirements DEV-HTM-04, DEV-AIF-01, DEV-AIF-02, DEV-AIF-03, DEV-MON-07

Our approach to Search

Google Search (How Search Works) · checked 3 October 2026

https://www.google.com/search/howsearchworks/our-approach/

Backs 3 claims, by grade

Prerequisites

Google Search Console API documentation · checked 3 October 2026

https://developers.google.com/webmaster-tools/v1/prereqs

Backs 2 claims, by grade

Pricing

Google Search Console API documentation · checked 3 October 2026

https://developers.google.com/webmaster-tools/pricing

Backs 1 claim, by grade

Refine Google searches

Google Search Help · checked 3 October 2026

https://support.google.com/websearch/answer/2466433?hl=en

Backs 1 claim, by grade

Robots meta tag, data-nosnippet, and X-Robots-Tag specifications

Google Search Central · checked 3 October 2026

https://developers.google.com/search/docs/crawling-indexing/robots-meta-tag

Backs 45 claims, by grade

Documentsrequirements DEV-REN-05, DEV-IDX-01, DEV-IDX-03, DEV-IDX-04, DEV-IDX-05, DEV-IDX-06, DEV-IDX-07, DEV-IDX-08, DEV-IDX-09, DEV-HTM-05, DEV-VID-05

Spam policies for Google web search

Google Search Central · checked 4 October 2026

https://developers.google.com/search/docs/essentials/spam-policies

Backs 29 claims, by grade

Documentsrequirements DEV-INT-10, DEV-INT-11, DEV-HTM-06, DEV-SPM-01, DEV-SPM-02, DEV-SPM-03, DEV-SPM-04, DEV-SPM-05

Tell Google about localized versions of your page

Google Search Central · checked 3 October 2026

https://developers.google.com/search/docs/specialty/international/localized-versions

Backs 36 claims, by grade

Documentsrequirements DEV-CAN-06, DEV-INT-01, DEV-INT-03, DEV-INT-04, DEV-INT-05, DEV-INT-06, DEV-INT-07, DEV-INT-08

Translate

The Chromium Projects · checked 2 October 2026

https://www.chromium.org/developers/design-documents/translate/

Backs 1 claim, by grade

Documentsrequirement DEV-IDX-09

Understand the JavaScript SEO basics

Google Search Central · checked 3 October 2026

https://developers.google.com/search/docs/crawling-indexing/javascript/javascript-seo-basics

Backs 65 claims, by grade

Documentsrequirements DEV-URL-01, DEV-URL-02, DEV-URL-03, DEV-REN-01, DEV-REN-02, DEV-REN-04, DEV-REN-05, DEV-REN-06, DEV-REN-08, DEV-REN-10, DEV-ERR-02, DEV-PRF-02, DEV-MON-02, DEV-MON-10

What is canonicalization

Google Search Central · checked 3 October 2026

https://developers.google.com/search/docs/crawling-indexing/canonicalization

Backs 27 claims, by grade

Documentsrequirements DEV-CAN-02, DEV-CAN-05, DEV-CAN-07, DEV-CAN-08, DEV-HTM-01

Press reports 12

Third-party publications reporting what Google or a Googler said. Not Google’s own documentation.