Yahoo Slurp (crawler)
Yahoo’s search crawler documentation and policy links—not a downloadable prefix feed like googlebot.json.
Official sources
User agents
-
Mozilla/5.0 (compatible; Yahoo! Slurp; http://help.yahoo.com/help/us/ysearch/slurp)
Y
Yahoo
Yahoo (Yahoo Holdings Inc.) operates multiple autonomous systems, including legacy AOL networks. Yahoo does not publish a single Google-style JSON file for all crawler IPs; use ASN context plus Yahoo’s help-center guidance and your own traces.
Autonomous systems
Yahoo Holdings — YAHOO ASNs
Commonly seen as YAHOO-* in WHOIS. Align allowlists with the addresses you observe, not ASN alone.
Announced under this company
AS10310AS14776AS14777AS14778AS14779AS14780AS14781
Legacy AOL (Yahoo Holdings)
AOL-ATDN and AOL-AS under Yahoo Holdings Inc.; still referenced in BGP for some Yahoo/AOL paths.
Announced under this company
AS1668AS2056
Regional & facility ASNs
Includes YAHOO-BF1, BCST-AC2, NE1, GQ1, and YAHOO-ULS (Yahoo UK Limited). Portfolio can change—re-verify for production rules.
Announced under this company
AS26101AS36088AS36645AS36647AS43428
Published ranges
Official documentation and feeds for each product—open the links for current ranges and verification guidance.