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YandexAI search crawler

YandexAdditionalBot

YandexAdditionalBot is a Yandex additional crawler token for YandexGPT-related answer and analysis features.

Needed to be found in its search index.

Get the robots.txt ruleYandex documentation
Is YandexAdditionalBot allowed on your site?2 Yandex bots

Reads your live robots.txt and applies the same rules these crawlers use. Nothing is stored.

robots.txt token
YandexAdditionalBot
Follows robots.txt
Yes, documented
How to verify it
Not published
Seen on
Not measured
Last checked
11 June 2026

Should you block YandexAdditionalBot?

Not if you want to be found. Blocking it can limit Yandex AI answer features from reading your pages.

What blocking each Yandex bot does
Yandex botJobIf you block it
YandexAdditionalSearchBlocking it can reduce YandexGPT-related answer features from using your content.
YandexAdditionalBotThis pageSearchBlocking it can limit Yandex AI answer features from reading your pages.
robots.txt
User-agent: YandexAdditionalBot
Disallow: /

Asks YandexAdditionalBot not to crawl any page. Other Yandex bots are unaffected. Add it to the robots.txt file at the root of your site, above any wider rules.

Ignored robots.txt?

Allowing YandexAdditionalBot only creates the possibility of retrieval. To find out whether your pages are selected, measure which answer engines actually cite your pages using a stable query set.

Spot it in your logs.

Match the name, then check where the request came from. Anyone can copy a user-agent.

User-agentsource
YandexAdditionalBot

Version numbers change. Match the highlighted name, not the whole string.

  1. 1

    Match the name

    Search your server or CDN log for YandexAdditionalBot, case-insensitive. A match is a clue, not proof.

  2. 2

    Check the source

    Yandex publishes no IP ranges, reverse DNS or signatures for YandexAdditionalBot in the sources here, so it cannot be verified. Treat matches as unconfirmed.

Serve the content in HTML

The cited operator material does not verify JavaScript rendering. Serve useful HTML before client-side JavaScript where possible.

Questions, answered.

YandexAdditionalBot is a Yandex additional crawler token for YandexGPT-related answer and analysis features.

Sources.

Officially documented. Operator facts and Trakkr’s measurements keep separate dates.

  1. [1]
    Yandex crawler documentation

    Officially documented · checked 11 June 2026

    yandex.ru/support/webmaster/en/search-appearance/fast.html

First verified 11 June 2026. Last source check 11 June 2026.

All AI crawlers

See which AI crawlers read your site.

Trakkr shows which bots, YandexAdditionalBot included, visit which pages each day, and whether the answers they feed mention you.

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