Verified Bots Directory

Directory / Search engines

YandexMobileBot

Verifiable

Yandex's mobile-layout robot, which fetches pages to determine whether their layout is suitable for mobile devices. It advertises an iPhone Safari prefix followed by its own YandexMobileBot token, and Yandex lists it among the robots that do not follow the general robots.txt rules written for arbitrary robots.

Operated by Yandex · Official documentation

User agents

Patterns this directory matches, with real observed strings.

  • regexYandexMobileBot/\d
  • observedMozilla/5.0 (iPhone; CPU iPhone OS 8_1 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12B411 Safari/600.1.4 (compatible; YandexMobileBot/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

    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.