What is yacybot?
yacybot is listed as a search crawler. Use this crawler profile to identify user-agent tokens, operator signals, platform hints, and recommended handling.
yacybot
Search crawler
- Version
- Unknown
- First seen
- Sep 17, 2025
- Confidence
- Known user-agent token
Crawler tags
Directory facts
- AI model training
- Not listed as training
- Acts on behalf of user
- No, autonomous
- Obeys directives
- Yes, listed as obeying robots.txt
What is yacybot?
yacybot is listed as a search crawler. yacybot is likely used to discover, crawl, and index public web pages.
yacybot matched a known crawler token in the user-agent string, but this page alone does not prove IP ownership.
How to identify yacybot in logs
Search server logs for yacybot. Matching those tokens is useful for discovery, but IP verification is still recommended before trusting the identity.
yacybot (/global; amd64 Linux 6.1.0-18-amd64; java 17.0.10; Europe/en) http://yacy.net/bot.html
Use this as a web-crawler lookup reference for identifying how this user-agent presents itself in server logs. After you identify crawler traffic, run the WebMCP Compatibility Checker to confirm whether AI crawlers and agents can understand your site.
User-agent signals
- Product tokens
- yacybot, amd64, Linux, java, Europe/en
- Documentation
- http://yacy.net/bot.html
- Contact
- None found
- Platform
- Linux · Server
- Browser profile
- Unknown · Unknown
- Browser-like UA
- No
- HTTP library
- Unknown
- Spoof risk
- Medium
Questions answered by this crawler profile
What is yacybot?
yacybot is listed as a search crawler. yacybot is likely used to discover, crawl, and index public web pages.
Does yacybot train AI models?
yacybot is not listed as being used to train AI or LLM systems.
Is yacybot user-triggered?
yacybot is listed as operating independently of a direct user action.
How do I identify yacybot in logs?
Search server logs for yacybot. Matching those tokens is useful for discovery, but IP verification is still recommended before trusting the identity.
Does yacybot respect robots.txt?
This directory entry lists the crawler as obeying robots.txt directives. Confirm behavior in your logs before relying on user-agent strings alone.