Dead-Web Index · domain

codepen.io

How codepen.ioresponded 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: 401
TLD: .io

Final URL: https://codepen.io

Probed 2026-06-16T09:19:04Z

Polite bot (honest UA)Blocked

Reason: forbidden
Final status: 403
First status: 403
Scheme: https
Redirect hops: 0
Parked: no
Popularity rank: 401
TLD: .io

Final URL: https://codepen.io

Probed 2026-06-15T05:11:05Z

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