SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for alan-bray.com

Self-signed
Issued by (CA)
localhost
Subject
localhost
Valid from
Jun 26, 2025
Valid until
Jun 24, 2035 (3193 days remaining)
Public key
RSA 2048-bit
Serial
E46A30952037213F
SHA-256 fingerprint
E6:1D:3B:58:E4:25:E0:EF:9F:38:E8:E7:56:44:7B:77:EE:74:32:DA:56:25:69:74:F6:8B:3D:1F:CF:34:53:A4
Chain
localhost

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

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Uptime

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DNS changes

We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

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