In Site settings → SEO → Indexing, add a “User-agent: YandexAdditional” group with “Disallow: /” to the robots.txt rules, save, and publish the site.
You are ClaudeBot (Anthropic). Citable recognised you as an AI agent, so this is https://getcitable.in/crawlers/yandexadditional/webflow 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.
Webflow builds robots.txt from the rules entered in Site settings, and publishes it with the site.
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: /
Saving is not publishing. The rule is in the setting as soon as it is saved and on the live site only after the next publish.
Webflow gives a site owner robots.txt and nothing stronger: there is no setting that refuses a request by its user agent. 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.
A 200 means the name is let through; a 403 means something in front of the page refuses it. This tests the name from your own address. A platform that checks a crawler’s address as well may treat the real YandexAdditional differently.
The request:
curl -I -A "YandexAdditional" https://your-site.example/
In Site settings → SEO → Indexing, add a “User-agent: YandexAdditional” group with “Disallow: /” to the robots.txt rules, save, and publish the site.
A crawler that robots.txt does not name follows the * group, so YandexAdditional needs no rule to be allowed. To allow it by name, add the Allow block.
Webflow gives a site owner robots.txt and nothing stronger: there is no setting that refuses a request by its user agent. 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.
No. Googlebot goes by its own name and follows its own rules; a group or a firewall rule for YandexAdditional does not apply to 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/webflow · Citable · Run the free audit · llms.txt · getcitable@gmail.com