Is YandexBot using 5.255.251.12?
Yes, 5.255.251.12 is a confirmed YandexBot IP address from which YandexBot crawls the world wide web.
Last Seen
Wed, January 02 2019 at 11:55:26
IPv4
5.255.251.12
Host
5-255-251-12.spider.yandex.com.

User Agents Detected Crawling from YandexBot IP 5.255.251.12
- Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)