microsoft.com: what it tells AI crawlers

On 26 October 2026, microsoft.com's robots.txt allowed all of GPTBot, OAI-SearchBot, ClaudeBot, Claude-SearchBot, Google-Extended, PerplexityBot and CCBot.

Last verified 2026-10-26 21:13 UTC (daily run of 2026-10-26). Proof for that day.

Panel: top 1k (Tranco)
robots.txt: ok (HTTP 200) · https://www.microsoft.com/robots.txt
unchanged since 2026-10-26 · sha256 79a2a24e3e2c00de… · view as recorded
The * group: allows applies to every agent without its own group

Per AI bot, 2026-10-26

User agent	Verdict	How
GPTBot	allows	through the * group
OAI-SearchBot	allows	through the * group
ChatGPT-User	allows	through the * group
ClaudeBot	allows	through the * group
Claude-SearchBot	allows	through the * group
Claude-User	allows	through the * group
PerplexityBot	allows	through the * group
Perplexity-User	allows	through the * group
Googlebot	allows	through the * group
Google-Extended	allows	through the * group
Applebot-Extended	allows	through the * group
CCBot	allows	through the * group
Bytespider	allows	through the * group
Meta-ExternalAgent	allows	through the * group
Amazonbot	allows	through the * group

Other signals

Publishes /llms.txt	no
Publishes /ai.txt	no
Publishes /.well-known/tdmrep.json	no
Reserves TDM rights (TDMRep file, header or meta)	no
Declares Content Signals (robots.txt or header)	no
Says ai-train=no in a Content Signal	no
Points to an RSL licence (robots.txt License line or Link header)	no
Answers with an x402 payment offer (lower bound: only the homepage is probed)	no
Answers HTTP 402 Payment Required (lower bound: only the homepage is probed)	no
Sends noai / noimageai directives	no
Refused our fetcher (403 / challenge)	no

robots.txt as recorded sha256 b3f69c8c450bf6f6…

# Robots.txt file for www.microsoft.com

User-agent: *
Disallow: /*/store/locations/store-locations-sitemap.xml
Disallow: /en-us/windows/si/matrix.html
Disallow: /en-us/windows/si/matrix.html
Disallow: /*/security/search-results.aspx?
Disallow: /*/music/*/search/
Disallow: /*/store/buynow?
Disallow: /*/store/cart
Disallow: /*/search/
Disallow: /*/music/*/Search/
Disallow: /*/Search/
Disallow: /*/newsearch/
Disallow: *action=catalogsearch&
Disallow: /*/store/d/groove-music-pass/cfq7ttc0k5dq/0001
Allow: /*/store/*/search/
Allow: /*/store/*/layout/
Allow: /*/store/music/groove-music-pass/*
Allow: *action=catalogsearch&catalog_mode=grid&page=2$
Allow: *action=catalogsearch&catalog_mode=grid&page=3$
Allow: *action=catalogsearch&catalog_mode=grid&page=4$
Allow: *action=catalogsearch&catalog_mode=grid&page=5$
Allow: *action=catalogsearch&catalog_mode=grid&page=6$
Allow: *action=catalogsearch&catalog_mode=grid&page=7$
Allow: *action=catalogsearch&catalog_mode=grid&page=8$
Allow: *action=catalogsearch&catalog_mode=list&page=2$
Allow: *action=catalogsearch&catalog_mode=list&page=3$
Allow: *action=catalogsearch&catalog_mode=list&page=4$
Allow: *action=catalogsearch&catalog_mode=list&page=5$
Allow: *action=catalogsearch&catalog_mode=list&page=6$
Allow: *action=catalogsearch&catalog_mode=list&page=7$
Allow: *action=catalogsearch&catalog_mode=list&page=8$
Disallow: *action=accessorysearch&product=*&*
Allow: *action=accessorysearch&product=*$
Disallow: *action=accessorysearch&
Allow: *action=accessorysearch&page=2$
Allow: *action=accessorysearch&page=3$
Allow: *action=accessorysearch&page=4$
Allow: *action=accessorysearch&page=5$
Allow: *action=accessorysearch&page=6$
Allow: *action=accessorysearch&page=7$
Allow: *action=accessorysearch&page=8$
Disallow: *action=productcompareaction&
Disallow: *action=productLinkAction&
Disallow: *action=overlay&
Disallow: *action=quickSearch&
Disallow: *action=writeReview
Disallow: *rep=hc
Disallow: *fe=true
Disallow: *?intc=
Disallow: *&solved=
Disallow: /music/*/wal/
Disallow: */wal/
Disallow: */layout/
Disallow: */base-en/
Disallow: *action=siteSearch
Disallow: *action=productSupportSearch
Disallow: *=imgmanager
Disallow: */unsubscribe/
Disallow: *ActivityUID=
Disallow: /feeds/TechNet/fr-fr/screenshot/screenshot%20surface.jpg
Disallow: /imaginecup/*
Disallow: /*/download/confirmation.aspx?
Disallow: /*HpOptOut=true$
Disallow: /*TOCLinksForCrawlers*
Disallow: /*mac/help.mspx?
Disallow: /*mactopia/help.mspx?
Disallow: */mediaapi/
Disallow: /blacklisted*
Disallow: /canada/Library/mnp/2/aspx/
Disallow: /communities/bin.aspx?
Disallow: /communities/blogs/PortalResults.mspx?
Disallow: /communities/eventdetails.mspx?
Disallow: /communities/rss.aspx*
Disallow: /*/download/confirmation.aspx?
Disallow: /*/download/registration-suggested.aspx?
Disallow: /*/download/results.aspx?
Disallow: /*/download/Browse.aspx?
Disallow: /*/download/browse.aspx?
Disallow: /*/download/info.aspx?
Disallow: /*/download/thankyou.aspx
Disallow: /*/download/thankyou.aspx?
Disallow: /france/formation/centres/planning.asp?
Disallow: /france/ie/default.asp?
Disallow: /france/mnp_utility.mspx?
Disallow: /genuine/
Disallow: /Germany/kleinunternehmen/euga/detail.mspx?
Disallow: /Germany/kleinunternehmen/euga/results.mspx?
Disallow: /germany/library/images/mnp/
Disallow: /germany/video/de/de/related*
Disallow: /hpc/*/supported-applications.aspx?
Disallow: /ie/ie40/
Disallow: /info/customerror.htm*
Disallow: /info/smart404.asp*
Disallow: /intlkb/
Disallow: /isapi/
Disallow: /Japan/DirectX/default.asp?
Disallow: /japan/directx/default.asp?
Disallow: /japan/enable/textview.asp?
Disallow: /japan/products/library/search.asp?
Disallow: /japan/showcase/print/default.aspx?
Disallow: /japan/terminology/query.asp?
Disallow: /*mnp_utility.mspx?
Disallow: /rus/licensing/Unilateral.aspx/*
Disallow: /spain/empresas/
Disallow: /spain/medianaempresa/
Disallow: /windows/compatibility/windows-vista/
Disallow: /windows/compatibility/windows-7/
Disallow: /windows/compatibility/windows-7/*
Disallow: /windows/404.aspx?*
Disallow: /windows/campaign/meet-start.aspx
Disallow: /windows/campaign/meet-apps.aspx
Disallow: /windows/campaign/features-built-in-apps.aspx
Disallow: /ru-ru/events/platforma/materials/default.aspx?speaker*
Disallow: /de-de/corporate/rechtliche-hinweise/impressum_de.aspx

Sitemap: https://www.microsoft.com/learning/sitemap.xml
Sitemap: https://www.microsoft.com/filedata/sitemaps/RW5xN8
Sitemap: https://www.microsoft.com/store/collections.xml
Sitemap: https://www.microsoft.com/store/productdetailpages.index.xml
Sitemap: https://www.microsoft.com/en-us/surface/surface.index.xml
Sitemap: https://www.microsoft.com/microsoft-365/sitemapindex.xml
Sitemap: https://www.microsoft.com/microsoft-teams/sitemapindex.xml
Sitemap: https://www.microsoft.com/microsoft-viva/sitemapindex.xml
Sitemap: https://www.microsoft.com/security/sitemapindex.xml
Sitemap: https://www.microsoft.com/windows-365/sitemapindex.xml
Sitemap: https://www.microsoft.com/trust-center/sitemapindex.xml
Sitemap: https://www.microsoft.com/store/categories.xml
Sitemap: https://www.microsoft.com/evalcenter/sitemapindex.xml
Sitemap: https://www.microsoft.com/isv/sitemapindex.xml
Sitemap: https://www.microsoft.com/en-us/windows/windows-index.xml

robots.txt versions

From	Through	State	Version
2026-10-26	2026-10-27	ok 200	`79a2a24e3e2c`

Timeline of changes

Date	What changed
No changes since the first observation (2026-10-26).

Reconstructed history (Common Crawl)

From Common Crawl's robots.txt captures: what CCBot was served, one crawl per quarter. A separate series from the daily observations above; a 403 here means Common Crawl was refused, not this ledger.

Crawl	Host	State	GPTBot	OAI-SearchBot	ChatGPT-User	ClaudeBot	Claude-SearchBot	Claude-User	PerplexityBot
2026-09-21 CC-MAIN-2026-39	www.microsoft.com	ok view	allows	allows	unknown	allows	allows	unknown	allows
2024-09-16 CC-MAIN-2024-38	www.microsoft.com	ok view	allows	allows	unknown	allows	allows	unknown	allows
2023-10-02 CC-MAIN-2023-40	www.microsoft.com	ok view	allows	allows	unknown	allows	allows	unknown	allows
2022-10-03 CC-MAIN-2022-40	www.microsoft.com	ok view	allows	allows	unknown	allows	allows	unknown	allows
2021-09-27 CC-MAIN-2021-39	www.microsoft.com	ok view	allows	allows	unknown	allows	allows	unknown	allows
2020-09-28 CC-MAIN-2020-40	www.microsoft.com	ok view	allows	allows	unknown	allows	allows	unknown	allows
2019-09-23 CC-MAIN-2019-39	www.microsoft.com	ok view	allows	allows	unknown	allows	allows	unknown	allows
2018-09-24 CC-MAIN-2018-39	www.microsoft.com	ok view	allows	allows	unknown	allows	allows	unknown	allows
2017-09-25 CC-MAIN-2017-39	www.microsoft.com	ok view	allows	allows	unknown	allows	allows	unknown	allows
2016-09-05 CC-MAIN-2016-36	microsoft.com	ok view	allows	allows	unknown	allows	allows	unknown	allows

Evidence

Every daily observation of microsoft.com is a leaf in that day's Merkle tree. Proof of the robots.txt line for 2026-10-26: audit path (JSON), day root and OpenTimestamps proof (complete (bitcoin block 973294)).

API: https://infrarabbit.com/crawlers/api/v1/policy/microsoft.com