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 oakdesktop.website

Valid
Issued by (CA)
Let's Encrypt
Subject
oakdesktop.website
Valid from
Sep 19, 2026
Valid until
Dec 18, 2026 (83 days remaining)
Public key
EC 256-bit
Serial
06D940655725363D6BD44A1AE3657A35FB73
SHA-256 fingerprint
71:64:92:63:85:B6:C7:E2:24:BC:22:72:37:DE:EF:E9:A7:98:07:A0:43:6E:9A:CA:D4:7B:64:B7:CF:4D:57:C6
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
*.oakdesktop.website, oakdesktop.website

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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