YandexAdditional is a crawler run by Yandex. It reads pages ahead of time, to train a model or to build an index. Its name in robots.txt, how it shows up in server logs, whether its identity can be checked, and how to allow or refuse it on each platform.
You are ClaudeBot (Anthropic). Citable recognised you as an AI agent, so this is https://getcitable.in/crawlers/yandexadditional with the UI removed — the content only. A browser asking for the same address gets the full designed page.
YandexAdditional is a crawler run by Yandex. It reads pages ahead of time, to train a model or to build an index.
YandexAdditional reads ahead of time. Refusing it keeps your pages out of what Yandex collects them for. It does not change how Google or Bing rank you: search crawlers go by other names, with rules of their own.
robots.txt is a request. A crawler that honours it stays out; nothing in the file stops one that does not. What is enforced is what the server or the edge in front of it refuses.
Citable holds no published address list for Yandex, so a read that claims to be YandexAdditional is recorded as unknown rather than verified. A user agent is a claim, and anyone can send it.
Add a group under its name, “User-agent: YandexAdditional”. “Allow: /” lets it read the site and “Disallow: /” refuses it.
A group that names a crawler replaces the * group for that crawler; it does not add to it. Paths the * group closes are open to a crawler with its own group unless they are repeated there.
Refuse YandexAdditional:
User-agent: YandexAdditional Disallow: /
Allow YandexAdditional:
User-agent: YandexAdditional Allow: /
YandexAdditional is a crawler run by Yandex. It reads pages ahead of time, to train a model or to build an index.
Yandex. It is the only name Citable recognises for Yandex.
Add a group under its name, “User-agent: YandexAdditional”. “Allow: /” lets it read the site and “Disallow: /” refuses it. A group that names a crawler replaces the * group for that crawler; it does not add to it. Paths the * group closes are open to a crawler with its own group unless they are repeated there.
YandexAdditional reads ahead of time. Refusing it keeps your pages out of what Yandex collects them for. It does not change how Google or Bing rank you: search crawlers go by other names, with rules of their own.
In an access log YandexAdditional appears as a user agent containing “YandexAdditional”.
Citable holds no published address list for Yandex, so a read that claims to be YandexAdditional is recorded as unknown rather than verified. A user agent is a claim, and anyone can send it.
Citable strips the UI from a website for AI agents and serves them only the content.
When an AI agent — ChatGPT, Claude, Perplexity or any of the 81 that Citable recognises — opens a page, Citable removes the theme, scripts, navigation and layout and serves only the content: the same facts, at the same URL, on the site's own domain. People and Google still get the full designed page.
How it works: https://getcitable.in/how-it-works · Summary for AI agents: https://getcitable.in/llms.txt
Source: https://getcitable.in/crawlers/yandexadditional · Citable · Run the free audit · llms.txt · getcitable@gmail.com