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YandexAI search crawler

YandexAdditional

YandexAdditional is a Yandex crawler token for data used in YandexGPT quick answers and additional analysis.

Needed to be found in its search index.

Get the robots.txt ruleYandex documentation
Is YandexAdditional 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
YandexAdditional
Follows robots.txt
Yes, documented
How to verify it
Not published
Seen on
Not measured
Last checked
11 June 2026

Should you block YandexAdditional?

Not if you want to be found. Blocking it can reduce YandexGPT-related answer features from using your content.

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

Asks YandexAdditional 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?

Whether to allow YandexAdditional is a policy call. Either way, check which AI platforms actually send you human visitors before assuming crawl volume equals value.

Spot it in your logs.

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

User-agentsource
YandexAdditional

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

  1. 1

    Match the name

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

  2. 2

    Check the source

    Yandex publishes no IP ranges, reverse DNS or signatures for YandexAdditional 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.

YandexAdditional is a Yandex crawler token for data used in YandexGPT quick answers and additional analysis.

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, YandexAdditional included, visit which pages each day, and whether the answers they feed mention you.

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