Known agents

The AI agents and crawlers Punchline recognizes by name (registry version 2026-10-25.1). A visit counts as one of them only when its identity checks out: a valid signature, or an IP address in the operator's published ranges. Anything that claims one of these names from the wrong address is labelled an impostor.

Agent	Operator	Type	Why it fetches	Verified by
GPTBot	openai	Crawler	Training data	published IP ranges
OAI-SearchBot	openai	Crawler	Search / answer index	published IP ranges
ChatGPT-User	openai	Declared agent	Live: fetches for someone asking now	published IP ranges
ChatGPT agent	openai	Signed agent	Live: acts in a browser for someone	signed requests
ClaudeBot	anthropic	Crawler	Training data	published IP ranges
Claude-SearchBot	anthropic	Crawler	Search / answer index	published IP ranges
Claude-User	anthropic	Declared agent	Live: fetches for someone asking now	published IP ranges
PerplexityBot	perplexity	Crawler	Search / answer index	published IP ranges
Perplexity-User	perplexity	Declared agent	Live: fetches for someone asking now	published IP ranges
Googlebot	google	Crawler	Search / answer index	published IP ranges, reverse DNS
Bingbot	microsoft	Crawler	Search / answer index	published IP ranges, reverse DNS
Applebot	apple	Crawler	Search / answer index	published IP ranges, reverse DNS
DuckDuckBot	duckduckgo	Crawler	Search / answer index	published IP ranges
CCBot	commoncrawl	Crawler	Training data	published IP ranges
Google-Agent	google	Declared agent	Live: acts in a browser for someone	published IP ranges
MistralAI-User	mistral	Declared agent	Live: fetches for someone asking now	published IP ranges
MistralAI-Index	mistral	Crawler	Search / answer index	published IP ranges

Agents not on this list are still detected, by behavior: HTTP clients, headless and automated browsers, cloud networks and machine-like request rates. See Concepts.