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yacybot

Review

yacybot is a search crawler from YaCy used for search indexing, URL discovery, page rendering, result freshness.

User-Agent

yacybot

User-agent strings are identity signals, not proof of identity. Confirm the source and behavior before trusting a request.

Verification and Detection

Verification method: Verify yacybot by matching `yacybot` to YaCy evidence, then checking reverse DNS, source-network ownership, signed request data, or published crawler documentation when available.

yacybot traffic is primarily detected by the `yacybot` user-agent pattern; related patterns include `YaCy-Bot`. Compare source IPs, reverse DNS, request paths, and crawl cadence with YaCy infrastructure before trusting the traffic.

Handling Guidance

Use this record as identity context. Verify the request source, behavior, and relevance to your site before allowing or restricting traffic.

yacybot is used for search indexing, URL discovery, page rendering, result freshness, and search-quality checks.

Record Details

Aliases
YaCy Bot
Type
search
Operator
YaCy
Family
YaCy
Kind
Crawler
Purpose
Indexing
Identity
Official Documented
Detection confidence
High
Spoofing risk
Yacybot Has Medium Spoofing Risk Because The User Agent Can Be Copied, Even When The Bot Has Strong Source Or Documentation Support.
Status
Active
Respects robots.txt
Yes
Last verified
2026 04 01

Robots.txt Snippet

User-agent: yacybot
Disallow: /

Evidence and Sources