mercurynews.com: what it tells AI crawlers

On 27 October 2026, mercurynews.com's robots.txt fully blocked GPTBot, OAI-SearchBot, ClaudeBot, Claude-SearchBot, Google-Extended, PerplexityBot and CCBot; it also reserved TDM rights.

Last verified 2026-10-28 03:59 UTC (daily run of 2026-10-27). Proof for that day.

Panel

top 10k (Tranco)

robots.txt

ok (HTTP 200) · https://www.mercurynews.com/robots.txt
unchanged since 2026-10-27 · sha256 f2559ea5648b62fc… · view as recorded

The * group

allows applies to every agent without its own group

Per AI bot, 2026-10-27

Other signals

TDMRep rules: / reservation=1

robots.txt as recorded sha256 0ba52bf9fd5080d0…

# Our Content is made available for your personal, non-commercial use subject to our Terms of Service here: https://www.medianewsgroup.com/terms-of-use/
# Any other uses are prohibited, including but not limited to:
# (1) text and data mining activities under Art. 4 of the EU Directive on Copyright in the Digital Single Market;
# (2) use of any Content or information available on the Site for purposes of retrieval augmented generation, grounding, training, or development of machine learning models, algorithms, or artificial intelligence (AI) systems, or to generate substitute content or develop any products, services, or technology;
# (3) caching or archiving the Content; and/or
# (4) any commercial purposes.
# Contact us at https://www.mercurynews.com/contact-us/ for assistance.

User-agent: *
Disallow: /wp-admin/
Allow: /wp-admin/admin-ajax.php
Disallow: /*?returnUrl=
Disallow: /*?s=
Disallow: /page/
Disallow: /*/page/
Disallow: /cgi-bin/
Disallow: /wp-includes/
Disallow: /xmlrpc.php
Disallow: /wp-content/plugins/
Disallow: /wp-content/cache/
Disallow: /trackback/
Disallow: /comments/

User-agent: AI2Bot
Disallow: /

User-agent: Ai2Bot-Dolma
Disallow: /

User-agent: Amazonbot
Disallow: /

User-agent: Amzn-SearchBot
Disallow: /

User-agent: anthropic-ai
Disallow: /

User-agent: Applebot
Disallow: /

User-agent: Applebot-Extended
Disallow: /

User-agent: Archive.org_bot
Disallow: /

User-agent: Baiduspider
Disallow: /

User-agent: Brightbot 1.0
Disallow: /

User-Agent: Bytespider
Disallow: /

User-agent: carbon-umbrella-bot
Disallow: /

User-agent: CCBot
Disallow: /

User-agent: ChatGLM-Spider
Disallow: /

User-agent: ChatGPT-User
Disallow: /

User-agent: ClaudeBot
Disallow: /

User-agent: Claude-Searchbot
Disallow: /

User-agent: Claude-User
Disallow: /

User-agent: Claude-Web
Disallow: /

User-agent: Cohere-training-data-crawler
Disallow: /

User-agent: Cotoyogi
Disallow: /

User-agent: Dalvik
Disallow: /

User-agent: Datenbank Crawler
Disallow: /

User-agent: Diffbot
Disallow: /

User-agent: DocSpotBot
Disallow: /

User-agent: DuckAssistBot
Disallow: /

User-agent: FacebookBot
Disallow: /

User-agent: GnowitNewsbot
Disallow: /

User-agent: Google-Extended
Disallow: /

User-agent: GPTBot
Disallow: /

User-agent: grok-crawler
Disallow: /

User-agent: ia_archiver-web.archive.org
Disallow: /

User-agent: ICC-Crawler
Disallow: /

User-agent: imageSpider
Disallow: /

User-agent: Kangaroo Bot
Disallow: /

User-agent: laion-huggingface-processor
Disallow: /

User-agent: LCC
Disallow: /

User-agent: Mantisbot
Disallow: /

User-agent: Meta-ExternalAgent
Disallow: /

User-agent: MistralAI-User
Disallow: /

User-agent: netEstate Imprint Crawler
Disallow: /

User-agent: OAI-SearchBot
Disallow: /

User-agent: omgili
Disallow: /

User-agent: PanguBot
Disallow: /

User-agent: PerplexityBot
Disallow: /

User-agent: Perplexity-User
Disallow: /

User-agent: PetalBot
Disallow: /

User-agent: SBIntuitionsBot
Disallow: /

User-agent: SirdataBot
Disallow: /

User-agent: Slurp
Crawl-delay: 10

User-agent: Spider
Disallow: /

User-agent: Thinkbot
Disallow: /

User-agent: Timpibot
Disallow: /

User-agent: VelenPublicWebCrawler
Disallow: /

User-agent: Vivaldi
Disallow: /

User-agent: Webzio-extended
Disallow: /

User-agent: YandexBot
Disallow: /

User-agent: YouBot
Disallow: /

User-agent: AmazonAdBot
Disallow:

User-agent: facebookexternalhit
Disallow:

User-agent: grapeshot
Disallow:

User-agent: Mozilla/5.0 (compatible; EchoboxBot/1.0; hash/w4mwnpbXf3MFAbxOkJRw; +http://www.echobox.com)
Disallow:

User-agent: Twitterbot
Disallow:

User-agent: Mozilla/5.0 (compatible; NewsRoom.BI/0.1; +http://www.newsroom.bi/bot.html)
Allow: /
User-agent: Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA51N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.67 Mobile Safari/537.36 (compatible; mrfCompass-Booldog/1.0)
Allow: /
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.36(KHTML, like Gecko) Chrome/35.0.1916.153 Safari/537.36 (compatible; mrfCompass-Booldog/1.0)
Allow: /
User-agent: Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.96 Mobile Safari/537.36 (compatible; mrfCompass-Marshall/1.0)
Allow: /
User-agent: Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA51N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.67 Mobile Safari/537.36 (compatible; mrfCompass-Jukebox/1.0)
Allow: /
# Sitemap archive
Sitemap: https://www.mercurynews.com/sitemap.xml

robots.txt versions

Timeline of changes

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.

Evidence

Every daily observation of mercurynews.com is a leaf in that day's Merkle tree. Proof of the robots.txt line for 2026-10-27: audit path (JSON), day root and OpenTimestamps proof (complete (bitcoin block 973493)).

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