You ask ChatGPT about your product and it either draws a blank or makes stuff up. Meanwhile your competitor with the boring static WordPress site shows up perfectly. This isn't a content problem. It's a technical one.
How LLM crawlers work
ChatGPT, Perplexity, Claude, and other AI products crawl the web to build their knowledge bases. Most are lightweight HTTP clients. They request your URL, get the raw HTML response, and move on. They don't run JavaScript. They get your empty div and conclude there's nothing worth knowing about.
The crawlers you need to care about
- GPTBot — OpenAI's crawler for ChatGPT training and browsing
- PerplexityBot — crawls for Perplexity AI answers
- ClaudeBot — Anthropic's crawler
- GoogleOther — Google's crawler for AI Overviews
- Amazonbot — Amazon's AI products
Every single one needs fully rendered HTML to understand what your site is about.
The new SEO reality: Being invisible to LLM crawlers means being invisible in AI-generated answers. This matters more every month.
What to do right now
- Test what GPTBot sees:
curl -A "GPTBot/1.0" https://yoursite.com - If the output is an empty div, you're invisible to AI search
- Add a prerendering service to your stack (takes ~5 minutes)
- Verify: run the curl test again and see full HTML
Ready to stop being invisible?
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