YaCy

Operator

YaCy

Type

Search bot

Official page

yacy.net

In Vireo

Excluded, reported under Search engines

User agent

Requests from YaCy carry user agents like these:

yacybot (freeworld/global; x86 Windows XP 5.1; java 1.7.0_21; GMT+04:00/ru) http://yacy.net/bot.html

yacybot (freeworld/global; amd64 Linux 3.2.0-4-amd64; java 1.7.0_25; Europe/en) http://yacy.net/bot.html

Device Detector identifies it with this pattern (a case-insensitive regular expression):

yacybot

Anyone can put any name in a user agent. Where the operator publishes IP ranges, checking the request's address against them is the way to confirm a visit is genuine.

How Vireo counts YaCy

Vireo keeps requests from YaCy out of your pageviews and visitors and counts them on its bot report under Search engines, so you can see how much it left out rather than wonder why your server logs show more traffic.

Checked by running Vireo Analytics' own bot filter over YaCy's user agents.

Sources

• YaCy information page (yacy.net)
• Matomo Device Detector, bots.yml (LGPL-3.0)