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 jen-su.com

Valid
Issued by (CA)
Google Trust Services
Subject
jen-su.com
Valid from
Aug 25, 2026
Valid until
Nov 23, 2026 (78 days remaining)
Public key
EC 256-bit
Serial
61075E1F2474D082139E0833FB2D721B
SHA-256 fingerprint
54:B6:6E:DA:32:1C:67:C6:D8:C8:B4:D4:CD:11:1B:E6:02:61:00:F4:AD:42:5D:CC:17:6B:DA:11:CB:E4:EE:94
Chain
WE1 → GTS Root R4
Subject Alternative Names (1)
jen-su.com

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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