YandexWebmaster

Safe Block: Depends Verified robots.txt: Yes

Yandex Webmaster robot.

Key facts

User-Agent: YandexWebmaster
robots.txt token: YandexWebmaster
HTTP user-agent: Mozilla/5.0 (compatible; YandexWebmaster/2.0; +http://yandex.com/bots)

Source type: Unknown
Confidence: High
Last checked: 2026-04-03
Verification: Use reverse DNS and forward DNS matching to confirm the host belongs to yandex.ru, yandex.net, or yandex.com, following Yandex Webmaster guidance.
Operator URL: https://webmaster.yandex.com/
Source URL: https://yandex.com/support/webmaster/en/robot-workings/check-yandex-robots
Spoofing risk: User-agent strings can be spoofed. Verify with the operator’s published guidance before allow-listing.

Officially documented by Yandex in its Webmaster robot list.

User-agent: YandexWebmaster
Disallow: /

(http.user_agent contains "YandexWebmaster")

Advanced server rules

RewriteCond %{HTTP_USER_AGENT} YandexWebmaster [NC]
RewriteRule .* - [F,L]

if ($http_user_agent ~* "YandexWebmaster") { return 403; }

YandexWebmaster is documented by Yandex in its Webmaster robot guidance. Yandex Webmaster robot.

Use reverse DNS and forward DNS matching to confirm the host belongs to yandex.ru, yandex.net, or yandex.com, following Yandex Webmaster guidance.
Officially documented by Yandex in its Webmaster robot list.
Yandex Webmaster robot.
User-agent strings can be spoofed. Verify with the operator’s published guidance before allow-listing.