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Tool

Agent UA tester

We fetch your URL six times in parallel — once each as AgentSpeedBot, GPTBot, ChatGPT-User, PerplexityBot, ClaudeBot, and a vanilla desktop Chrome — and diff the responses. A row that returns a different status, smaller body, or different content hash than the others is a sign of cloaking, blocking, or agent-aware rendering.

Compare a URL
What we send
AgentSpeedBot
Our scanner (baseline)
AgentSpeedBot/1.0 (+https://agentspeed.com/bot)
GPTBot
OpenAI training crawler
Mozilla/5.0 (compatible; GPTBot/1.2; +https://openai.com/gptbot)
ChatGPT-User
ChatGPT browsing on behalf of a user
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; ChatGPT-User/1.0; +https://openai.com/bot
PerplexityBot
Perplexity citation crawler
Mozilla/5.0 (compatible; PerplexityBot/1.0; +https://perplexity.ai/perplexitybot)
ClaudeBot
Anthropic crawler
Mozilla/5.0 (compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
Browser
Vanilla desktop Chrome (control)
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36