Verified Bots Directory

Directory / Search engines

YandexOntoDB

Verifiable

The Yandex information card robot, which fetches pages used to build the object cards Yandex shows in search results. Yandex's robot table records that it follows the general robots.txt rules.

Operated by Yandex · Official documentation

User agents

Patterns this directory matches, with real observed strings.

  • regexYandexOntoDB/\d
  • observedMozilla/5.0 (compatible; YandexOntoDB/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

    Honors robots.txt (token: YandexOntoDB)

  • 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.