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LiveSource: Direct HTTPS request (headers + first 64 KB of HTML)Observed:
Results are fetched live. DNS answers may come from a resolver cache for up to the TTL shown.
What this service recorded for this name on earlier checks. A check happens only when someone opens a report or calls the API: nothing is scheduled, so gaps between checks are normal.
10 checks since Oct 8, 2026, the latest on Oct 12, 2026.
No change in the recorded values across 10 checks.
The history is kept for the domain name only; nothing about who looked it up is stored. Entries not seen again for 400 days are deleted. Changing A, AAAA and hosting values are normal for sites behind load balancers or content delivery networks.
The tool opens a TLS connection to port 443 of the hostname you enter, sends that hostname in the SNI extension as a browser would, and records the certificate the server returns. It shows the issuer, the subject, the validity period, the subject alternative names, the negotiated TLS version and whether the chain validates against a standard trust store. It then reads the HTTP response for a Strict-Transport-Security header.