ChatGPT SEO: test whether GPTBot can actually read your site
ChatGPT draws on content that GPTBot has successfully crawled - both for training and for real-time browsing. If GPTBot hits your site and receives an empty JavaScript shell, ChatGPT will never reference your business, your products, or your expertise no matter how well you rank on Google.
This free ChatGPT SEO checker sends a request with GPTBot's exact user-agent and shows you the raw HTML OpenAI receives. GPTBot does not execute JavaScript at all, so any content rendered client-side by React, Vue, or Angular is completely invisible to ChatGPT.
Paste a URL below to check whether ChatGPT can actually see what you have built.
How to use this tool
- 1
Choose a crawler from the list below (or select one from the category tabs)
- 2
Enter your page URL in the input field
- 3
Click 'Simulate crawl' to fetch your page with that bot's user agent
- 4
Review the HTML response - check for your page title, main content, and meta tags
- 5
Test multiple crawlers to compare how each one sees your site
How it works
When you select a crawler and enter a URL, we send a server-side HTTP request using that bot's exact User-Agent string. For example, selecting Googlebot sends the request with 'Mozilla/5.0 (compatible; Googlebot/2.1)' - the same identifier Google's real crawler uses.
Your web server receives this request and responds based on the User-Agent. If you have dynamic rendering, cloaking rules, or bot-specific logic configured, the response will reflect that. This is exactly what happens during a real crawl - we are replicating the full request/response cycle.
The returned HTML is then analysed for SEO elements: title tag, meta description, Open Graph tags, heading structure, canonical URL, structured data, and overall text content. Each element is scored, and the tool flags missing or problematic items with severity ratings.
When you select multiple crawlers, each one makes an independent request in parallel. The results are displayed side by side in a comparison table so you can spot differences - for example, a page that returns complete HTML for Googlebot but an empty shell for GPTBot.
Understanding ChatGPT (GPTBot)
GPTBot is OpenAI's web crawler that indexes content for ChatGPT's training data and its real-time web browsing feature. When users ask ChatGPT questions, it draws on content that GPTBot has successfully crawled and indexed. If your pages return empty HTML shells, ChatGPT simply cannot reference your content.
GPTBot does not execute JavaScript. It reads the raw HTML response from your server, which means any content rendered client-side by React, Vue, Angular, or similar frameworks is completely invisible to it. This includes page titles, descriptions, headings, body text, and structured data.
The rise of AI-powered search is shifting how users discover information. ChatGPT, with hundreds of millions of users, increasingly serves as a discovery channel alongside traditional search engines. Being invisible to GPTBot means missing out on AI-driven referrals and recommendations.
GPTBot respects robots.txt and can be selectively blocked. However, blocking it means opting out of ChatGPT referencing your content entirely. Pre-rendering offers a better approach: making your content accessible to GPTBot while maintaining your normal JavaScript application for human visitors.
Frequently asked questions
Can I block GPTBot from crawling my site?▾
Yes. Add 'User-agent: GPTBot' followed by 'Disallow: /' to your robots.txt. However, this means ChatGPT cannot reference or recommend your content at all. Pre-rendering is often a better solution - it makes your content accessible without requiring code changes.
Does ChatGPT use GPTBot for real-time browsing?▾
Yes. When ChatGPT browses the web in response to a user query, it uses GPTBot to fetch page content. If your page returns an empty JavaScript shell, ChatGPT will report that it could not find relevant content on your page.
How often does GPTBot crawl my site?▾
GPTBot's crawl frequency varies based on site authority and content freshness. It respects crawl-delay directives in robots.txt. Pre-rendering does not affect crawl frequency - it only ensures GPTBot sees your content when it does visit.
Related crawler tests
ClaudeBot checker
Test visibility for Anthropic's Claude AI. ClaudeBot indexes web content so Claude can provide accurate, up-to-date answers. JavaScript-only pages often return empty content to this crawler.
AI crawlerPerplexity SEO
Verify your content is accessible to Perplexity AI's search engine. PerplexityBot powers real-time web search answers - if it cannot parse your JavaScript, your site will not appear in Perplexity results.
AI crawlerGooglebot simulator
See your page exactly as Google's primary web crawler renders it. Googlebot processes JavaScript using a headless Chromium engine, but may still miss dynamically-loaded content that depends on user interaction or delayed API calls.
Search engineRelated free tools
What bots see
Enter any URL and see the raw HTML that search engine bots, AI crawlers, and social platforms receive - before and after JavaScript rendering.
Try it freeOG image checker and Open Graph debugger
Test your Open Graph and Twitter Card meta tags. Preview exactly how your links appear when shared on Facebook, LinkedIn, Twitter/X, and WhatsApp.
Try it freeSEO audit
Run a free SEO audit on any website. Check meta tags, headings, structured data, alt text, canonical URLs, and crawler accessibility.
Try it freeMake every crawler see your content
PageGlass automatically serves rendered HTML to all bots. No per-crawler configuration needed - one simple change covers Googlebot, AI crawlers, and social platforms.