What is YandexAdditionalBot? AI crawler guide

YandexAdditionalBot by Yandex: Yandex additional crawler token for YandexGPT-related answer and analysis features. Check its reported user-agent, robots.txt behavior, source, and verification guidance.

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

What is YandexAdditionalBot?

YandexAdditionalBot is a web crawler operated by Yandex, used as an additional token for YandexGPT-related answer and analysis features. It fetches pages to support AI-driven search enhancements, such as generating direct answers or summaries. The bot identifies itself with the user-agent token YandexAdditionalBot and honors robots.txt directives. It is distinct from Yandex's main search crawler and focuses on content that may be used in Yandex's AI-powered services.

What it's for

For site owners, YandexAdditionalBot may read your pages to help Yandex provide AI-generated answers or analysis in search results. If you want your content to appear in these features, allowing the bot can be beneficial. Blocking it could limit how your site is represented in Yandex's AI answer features.

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.

How to handle YandexAdditionalBot

To prevent YandexAdditionalBot from accessing your site, add a disallow rule in your robots.txt file targeting the user-agent token YandexAdditionalBot. The bot respects robots.txt, so this will stop it from crawling your pages. If you want to allow it, simply omit any disallow rule for this token.

robots.txt rule

User-agent: YandexAdditionalBot Disallow: /

Blocking cost

Blocking YandexAdditionalBot may prevent your content from being used in Yandex's AI answer features, potentially reducing visibility in those results.

Examples

YandexAdditionalBot crawls a recipe page to help YandexGPT generate a direct answer for a cooking-related query.
The bot fetches a product description to support an AI-generated summary in Yandex search results.
It accesses a news article to enable Yandex's AI to provide analysis or context in response to a user question.

Related bots

YandexAdditional: Another Yandex search crawler to compare.
xAI-SearchBot: Also tracked as a search crawler.
Bravebot: Also tracked as a search crawler.
Googlebot: Also tracked as a search crawler.
PetalBot: Also tracked as a search crawler.
Amzn-SearchBot: Also tracked as a search crawler.
Applebot: Also tracked as a search crawler.
Kagibot: Also tracked as a search crawler.
Kimi-SearchBot: Also tracked as a search crawler.
Robots.txt: Robots.txt is the control file used to allow or block YandexAdditionalBot.
AI Crawlers: YandexAdditionalBot is a concrete crawler example for this concept.

Frequently Asked Questions

What does YandexAdditionalBot do?

YandexAdditionalBot is a crawler used by Yandex for YandexGPT-related answer and analysis features. It fetches web pages to support AI-driven search enhancements.

Does YandexAdditionalBot obey robots.txt?

Yes, YandexAdditionalBot honors robots.txt directives. You can control its access by setting rules for the user-agent token YandexAdditionalBot.

How can I block YandexAdditionalBot?

Add a disallow rule for the user-agent YandexAdditionalBot in your robots.txt file. The bot will respect this and stop crawling your site.

What happens if I block YandexAdditionalBot?

Blocking YandexAdditionalBot may limit your content from appearing in Yandex's AI answer features, as the bot is used to fetch pages for those services.

Is YandexAdditionalBot the same as Yandex's main crawler?

No, YandexAdditionalBot is a separate token used specifically for YandexGPT-related features, distinct from Yandex's primary search crawler.

Data & Sources

Yandex documentation - Primary source for YandexAdditionalBot crawler details.