Dead-Web Index · domain

validator.w3.org

How validator.w3.orgresponded 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)Blocked

Reason: forbidden
Final status: 403
First status: 403
Scheme: https
Redirect hops: 0
Parked: no
Popularity rank: 364
TLD: .org

Final URL: https://validator.w3.org

Probed 2026-06-16T09:34:01Z

Polite bot (honest UA)Alive

Reason: ok
Final status: 200
First status: 200
Scheme: https
Redirect hops: 0
Parked: no
Popularity rank: 364
TLD: .org

Final URL: https://validator.w3.org

Probed 2026-06-15T04:53:54Z

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