Safe Official docs Search Engines

Yahoo Slurp

Operated by Yahoo

Quick Facts

User-Agent:
Slurp
Category:
Search Engines
Operator:
Yahoo
Safety:
Safe
Blocking Impact:
Low - No SEO ranking impact
SEO Impact Score:
2/10
Official docs:
help.yahoo.com

Confirmed by the operator

Yahoo names Slurp on its own documentation page, linked above. The token, purpose and robots.txt behaviour on this profile come from that page, re-checked on September 22, 2026.

What is Yahoo Slurp?

Yahoo Slurp is an AI search-index crawler operated by Yahoo. It collects and indexes web content so it can be surfaced as citations or answers inside Yahoo's AI search experience. Allowing Yahoo Slurp can increase your visibility in AI-powered search results, which is why most sites choose to permit it.

Yahoo Slurp is an AI search-index crawler operated by Yahoo. It collects and indexes web content so it can be surfaced as citations or answers inside Yahoo's AI search experience. Allowing Yahoo Slurp can increase your visibility in AI-powered search results, which is why most sites choose to permit it.
Yahoo Slurp uses the user-agent token Slurp. You can control it via robots.txt, meta tags (noai), or the emerging llms.txt standard. Robots.txt is voluntary; for hard enforcement, combine it with server-level IP blocking.

What happens if you block Yahoo Slurp?

🔶 AI Visibility Trade-off - Blocking Yahoo Slurp will not hurt Google or Bing rankings, but it can remove your content from AI search answers and assistant citations powered by this crawler. Block only if you have a deliberate reason.
Generally safe to allow; provides legitimate crawling value.

How to block Yahoo Slurp with robots.txt

<code>User-agent: Slurp</code> - Matching is case-insensitive. Robots.txt is fetched from the root of each subdomain separately.

Block completely (robots.txt)
User-agent: Slurp Disallow: /
Allow all (robots.txt)
User-agent: Slurp Allow: /
Block private only (robots.txt)
User-agent: Slurp Disallow: /private/ Disallow: /api/ Disallow: /admin/ Allow: /
Nginx server block
# Nginx: Hard-block Yahoo Slurp if ($http_user_agent ~* "Slurp") { return 403 "Bot blocked"; }
Apache .htaccess
# Apache: Hard-block Yahoo Slurp SetEnvIfNoCase User-Agent "Slurp" bad_bot Order Allow,Deny Allow from all Deny from env=bad_bot
Meta robots tag
<meta name="robots" content="noindex, nofollow">
X-Robots-Tag header
X-Robots-Tag: noindex, nofollow

Is Yahoo Slurp safe to allow?

Yes, Yahoo Slurp is a safe and legitimate crawler operated by Yahoo. It follows the Robots Exclusion Protocol (RFC 9309) and can be controlled with standard robots.txt rules.
Verify by reverse-DNS lookup: legitimate Yahoo Slurp requests resolve to Yahoo's domain.

What does Yahoo Slurp do?

Understanding Yahoo Slurp's purpose helps you decide whether to allow or block it.

  • Indexes web pages for AI-powered search answers
  • Surfaces your content as citations inside AI search results
  • Builds a knowledge index used to answer user questions
  • Allowing it can increase visibility in AI search
  • Respects robots.txt directives

Frequently Asked Questions

What is the official user-agent string for Yahoo Slurp?
The official user-agent string for Yahoo Slurp is: Slurp. Use this exact string in robots.txt, Nginx, Apache, or Cloudflare firewall rules to target this bot. Matching in robots.txt is case-insensitive. Verify a request genuinely comes from Yahoo Slurp by performing a reverse-DNS lookup on the source IP.
Is Yahoo Slurp safe?
Yes, Yahoo Slurp is a safe and legitimate crawler operated by Yahoo. It follows the Robots Exclusion Protocol (RFC 9309) and can be controlled with standard robots.txt rules.
Will blocking Yahoo Slurp hurt my SEO?
🔶 AI Visibility Trade-off - Blocking Yahoo Slurp will not hurt Google or Bing rankings, but it can remove your content from AI search answers and assistant citations powered by this crawler. Block only if you have a deliberate reason.
How do I block Yahoo Slurp in robots.txt?
Add the following lines to your /robots.txt file:
User-agent: Slurp
Disallow: /

This instructs Yahoo Slurp not to crawl any path on your site. To block only specific sections, replace / with the path (e.g., Disallow: /blog/).
Does Yahoo Slurp respect robots.txt?
Yahoo Slurp is operated by Yahoo and is expected to fetch and parse /robots.txt before crawling, following RFC 9309. For hard enforcement, combine robots.txt with server-level IP or user-agent blocking.
How do I verify if Yahoo Slurp is crawling my site?
Search your web server access logs for the string Slurp (case-insensitive: grep -i "Slurp" /var/log/nginx/access.log). Filter by user-agent in your log analytics tool (GoAccess, AWStats, etc.).

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