AI crawlers · Search indexes

`Mediapartners-Google`

Mediapartners-Google is the search index crawler run by Google: Google AdSense. Its operator documents how to verify it: Google special-crawler ranges (shared feed) + reverse DNS to google.com. A reverse DNS lookup on the source address must return the operator's domain, and a forward lookup on that name must return the same address.

User-agent token	`Mediapartners-Google`
Operator	Google
What it does	Google AdSense
Kind	search index crawler
Can a request be verified?	Yes — reverse dns
Verification source	Google special-crawler ranges (shared feed) + reverse DNS to google.com
In a CrawlCheck scan	Read from robots.txt; a refusal is scored

Allow or block it in robots.txt

User-agent: Mediapartners-Google
Disallow: /

User-agent: Mediapartners-Google
Allow: /

Add a group that names it: "User-agent: Mediapartners-Google" followed by "Disallow: /". A crawler follows only the most specific group that names it, so once a group names Mediapartners-Google, rules under "User-agent: *" no longer apply to it; repeat in that group any Disallow lines you still want.

What blocking it changes

Indirectly. It feeds Google AdSense. A refusal removes pages from that index, and most AI answer surfaces still draw on search indexes.

Other agents from Google

Google-CloudVertexBot — Vertex AI grounding
Googlebot — Google Search / AI Overviews
Google-Extended — Gemini training
Googlebot-Image — Google image crawler
Googlebot-News — Google News
Googlebot-Video — Google video crawler
Storebot-Google — Google Shopping
APIs-Google — Google push delivery
GoogleOther — Google non-search fetch
AdsBot-Google — Google Ads quality
Gemini-Deep-Research — Gemini research agent
Google-Agent — Google user-triggered agent, acts on the web
Google-GeminiNotebook — Gemini Notebook user-supplied URL fetch
GoogleOther-Image — Google common crawler, public image URLs
GoogleOther-Video — Google common crawler, public video URLs

See what Mediapartners-Google and every other named agent receive from your own site: run a free scan. The full catalogue is on AI crawlers and as JSON at /ai-crawlers.json.

Questions about Mediapartners-Google

QHow do I block Mediapartners-Google in robots.txt?

QHow can I tell if a request from Mediapartners-Google is real?

Its operator documents how to verify it: Google special-crawler ranges (shared feed) + reverse DNS to google.com. A reverse DNS lookup on the source address must return the operator's domain, and a forward lookup on that name must return the same address.

QDoes blocking Mediapartners-Google affect whether my site appears in AI answers?

Indirectly. It feeds Google AdSense. A refusal removes pages from that index, and most AI answer surfaces still draw on search indexes.

QDoes CrawlCheck test my site as Mediapartners-Google?

Not as a request. CrawlCheck reads the rules your robots.txt sets for Mediapartners-Google and reports them. A refusal of it counts toward the grade, because it costs the site visibility.