Dead-Web Index · domain

patft.uspto.gov

How patft.uspto.govresponded to each probe arm in the latest run. “Dead” is derived from the evidence below (DNS, TLS, HTTP status, redirects), not asserted directly.

Polite bot (honest UA)Dead

Reason: dns_failed
Final status: —
First status: —
Scheme: http
Redirect hops: 0
Parked: no
Popularity rank: 4,158
TLD: .gov

Probed 2026-06-16T12:21:12Z

Reachability (real Chrome TLS/JA3)Dead

Reason: dns_failed
Final status: —
First status: —
Scheme: https
Redirect hops: 0
Parked: no
Popularity rank: 4,158
TLD: .gov

Probed 2026-06-16T02:42:25Z

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