Is that AI crawler real?

Anyone can put "GPTBot" in a User-Agent string. Paste the IP address and we'll check whether it genuinely belongs to the AI operator it claims — verified against the operator's published IP ranges and forward-confirmed reverse DNS, the same evidence Unsourced runs on every crawl.

Best-effort, informational only — not security advice. Verdicts are based on the operators' own published data and live DNS, which can change. An "unverifiable" result means we have no published evidence to check against, not that the visitor is fake.