Verified Bots Directory

Directory / Social previews

YandexRCA

Verifiable

A Yandex robot that collects the data used to generate page previews. Yandex's robot table lists it separately from the indexing robots and records that it does not follow the general robots.txt rules.

Operated by Yandex · Official documentation

User agents

Patterns this directory matches, with real observed strings.

  • regexYandexRCA/\d
  • observedMozilla/5.0 (compatible; YandexRCA/1.0; +http://yandex.com/bots)

How to verify

Reverse-DNS check a client IP

dig -x <client-ip> +short   # expect a hostname matching *.yandex.ru

Reverse-DNS suffixes: *.yandex.ru, *.yandex.net, *.yandex.com

Good Bot Practices scorecard

  • Identifies honestly

    Stable UA token documented (1 pattern)

  • Verifiable

    Verifiable

  • Respects robots.txt

    Does not honor robots.txt

  • Behaves

    Crawl-rate behavior is operator-declared; not machine-verifiable from this dataset

  • Reachable operator

    Operator and documentation published

Measured against the Good Bot Practices.