Why do AI crawlers see less than visitors?

Many websites create content with JavaScript in the browser. Crawlers such as GPTBot or ClaudeBot usually load only the HTML – anything created afterwards is unknown to them.

Is this the same as the free AI crawler check?

The free check covers robots.txt, access and llms.txt of the homepage. The bot view compares any page with and without JavaScript and lists missing content word for word.

What if my website rejects AI bots?

The bot view shows it clearly – including the status code. Often a firewall or CDN rule is behind it, which can be opened specifically for AI bots.

How do I fix missing content?

With server rendering, prerendering or CiteBoost bot rendering, which serves AI bots the finished page – with exactly the content your visitors see.

All features

Bot view

See your website through the eyes of ChatGPT & co.

Most AI crawlers do not run JavaScript. Whatever only appears in the browser, they never see. The bot view shows you in black and white what reaches them – and what is missing.

See it in the live demo

Live demo with real measured data from our sample project – no sign-up, view only.

Bot view in CiteBoost: notion.com without JavaScript compared with the rendered page — Real view from the live demo

Without and with JavaScript

CiteBoost loads the page once like an AI crawler and once in the browser and compares text, links and headings in percent.

Missing content word for word

Headings and passages that only appear with JavaScript are listed verbatim – you know exactly what is missing.

robots.txt and firewall

For each important AI bot: does the robots.txt allow it, and does the server let requests with its user agent through at all?

Concrete next steps

Recommendations by priority – from prerendering and meta data to allowing individual bots.

What is it?

Loads a page once the way the crawlers of ChatGPT, Claude or Perplexity read it without JavaScript, and once fully rendered in a browser – and compares both: text, headings, links, page title, meta description, canonical, social preview, structured data and indexing. Plus, for 14 AI bots and search engines, whether robots.txt allows them and whether the server answers requests with their identity.

Why use it?

What AI crawlers cannot see, AI answers can neither cite nor recommend. Bot View shows at a glance whether your content reaches them, which passages are missing and exactly what to do.

Who is it for?

Webmasters, developers, SEO and GEO leads, and agencies.

When to use it?

For websites built with React, Vue or other JavaScript frameworks, after a relaunch, after changes to firewall or robots.txt, and when a brand does not show up in AI answers.

Without vs. with JavaScript side by side
Coverage of text, links and headings in %
Missing passages word for word
robots.txt rules for 14 AI bots
Detects firewall blocks for AI bots
Concrete recommendations

How to start: Pick a project or enter a URL → Check bot view → Implement recommendations