Verified Bots Directory

Directory / Monitoring

YandexCheckBot

Verifiable

Yandex's availability checker, which downloads pages from websites in different regions of the world to check whether they are reachable for users. Yandex's robot table records that it makes no indexing requests and does not follow the general robots.txt rules.

Operated by Yandex · Official documentation

User agents

Patterns this directory matches, with real observed strings.

  • regexYandexCheckBot/\d
  • observedMozilla/5.0 (compatible; YandexCheckBot/3.0; +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

    Service traffic you configured — robots.txt does not apply

  • 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.