Yahoo

5 crawlers operated by Yahoo

https://www.yahoo.com/

Who Yahoo is, for site owners

Yahoo operates 5 crawlers in our directory, filed under Search Engines. Of those 5, 5 rated safe for crawl behaviour.

Blocking Yahoo carries an SEO impact score of 10/10 across its crawlers. Every crawler here carries the same blocking impact: Critical - Blocking removes you from search results.

Our recommendation for Yahoo, set by its least reassuring crawler (Slurp, rated safe): Never block - it will remove your site from major search results.

Yahoo at a glance

Operator	Yahoo
Crawlers in directory	5
Categories	Search Engines
SEO impact if blocked	10/10
Crawl behaviour	5 rated safe
Website	www.yahoo.com
Official crawler docs	Yahoo crawler documentation

Crawlers operated by Yahoo

How to block or allow Yahoo in robots.txt

These rules cover all 5 crawlers Yahoo operates. Add them to the robots.txt file at the root of your domain.

Block Yahoo completely

User-agent: Slurp
User-agent: Yahoo-Blogs
User-agent: Yahoo-FeedSeeker
User-agent: Yahoo-MMCrawler
User-agent: YahooSeeker
Disallow: /

Allow Yahoo explicitly

User-agent: Slurp
User-agent: Yahoo-Blogs
User-agent: Yahoo-FeedSeeker
User-agent: Yahoo-MMCrawler
User-agent: YahooSeeker
Allow: /

robots.txt is a request, not an enforcement mechanism. A crawler that ignores it needs a block at the server or CDN layer. Rules are case-sensitive on the path and matched against the user-agent token, not the full user-agent string.

Frequently asked questions about Yahoo

What crawlers does Yahoo run?

Yahoo operates 5 crawlers in our directory: Slurp (user-agent Slurp), Yahoo-Blogs (user-agent Yahoo-Blogs), Yahoo-FeedSeeker (user-agent Yahoo-FeedSeeker), Yahoo-MMCrawler (user-agent Yahoo-MMCrawler), YahooSeeker (user-agent YahooSeeker).

Should I block Yahoo?

Never block - it will remove your site from major search results. That guidance follows this operator's least reassuring crawler, Slurp, rated safe, because allowing an operator allows every crawler it runs. The SEO impact score for blocking is 10/10, where 10 means blocking costs you the most visibility.

How do I block Yahoo in robots.txt?

Add the following to robots.txt at your domain root: User-agent: Slurp then User-agent: Yahoo-Blogs then User-agent: Yahoo-FeedSeeker then User-agent: Yahoo-MMCrawler then User-agent: YahooSeeker then Disallow: /. One Disallow line covers all 5 user-agent tokens.

Does blocking Yahoo hurt my search rankings?

Every crawler here carries the same blocking impact: Critical - Blocking removes you from search results. Those are search-indexing crawlers, so blocking them can remove your pages from the corresponding search results. Block them only if you intend to leave that index. Every crawler in this group is rated the same way, so there is no subset here that is safe to block for ranking purposes.