Crawling & Indexing: a timeline

How search engines find, fetch, render and store pages: crawl budget, robots.txt, sitemaps, canonicals, JavaScript rendering and index coverage. Problems here come before any ranking question — a page that is not crawled and indexed cannot rank, however good it is.

Latest crawling & indexing news · This month's crawling & indexing recap · RSS for this topic · What Google said about it

  1. October 2026 42 headlines

  2. September 2026 1 headline

    Spam update September 2026 spam update began 24 Sep

  3. August 2026 4 headlines

    Spam update August 2026 spam update began 18 Aug

  4. July 2026 7 headlines

  5. May 2026 5 headlines

    Core update May 2026 core update began 21 May

  6. April 2026 4 headlines

  7. March 2026 1 headline

    Core update March 2026 core update began 27 Mar

    Spam update March 2026 spam update began 24 Mar

  8. January 2026 1 headline

  9. July 2025 2 headlines

  10. June 2025 2 headlines

How this is built

Every archived headline is tagged with topics by keyword. Each month shows the most significant crawling & indexing headlines by this site's impact score, plus any Google update that began that month. Months with nothing archived are left out. The archive began in earnest in mid-2025, so earlier months are thin.