Is YandexBot using 5.255.251.15?
Yes, 5.255.251.15 is a confirmed YandexBot IP address from which YandexBot crawls the world wide web.
Last Seen
Tue, April 09 2019 at 18:53:42
IPv4
5.255.251.15
Host
5-255-251-15.spider.yandex.com.

User Agents Detected Crawling from YandexBot IP 5.255.251.15
- Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)