Dead-Web Index · domain

www.nih.gov

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

Reachability (real Chrome TLS/JA3)Alive

Reason: ok
Final status: 200
First status: 200
Scheme: https
Redirect hops: 0
Parked: no
Popularity rank: 2,565
TLD: .gov

Final URL: https://www.nih.gov

Probed 2026-06-16T04:56:32Z

Polite bot (honest UA)Blocked

Reason: forbidden
Final status: 403
First status: 403
Scheme: https
Redirect hops: 0
Parked: no
Popularity rank: 2,565
TLD: .gov

Final URL: https://www.nih.gov

Probed 2026-06-15T07:09:46Z

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