Verified Bots Directory

Directory / Search engines

YandexImageResizer

Verifiable

A Yandex robot that Yandex's robot table describes as the mobile devices robot, listed alongside YandexImages and recorded as following the general robots.txt rules.

Operated by Yandex · Official documentation

User agents

Patterns this directory matches, with real observed strings.

  • regexYandexImageResizer/\d
  • observedMozilla/5.0 (compatible; YandexImageResizer/2.0; +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

    Honors robots.txt (token: YandexImageResizer)

  • 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.