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 t-auto.dk

Valid
Issued by (CA)
Let's Encrypt
Subject
t-auto.dk
Valid from
Aug 30, 2026
Valid until
Nov 28, 2026 (54 days remaining)
Public key
RSA 2048-bit
Serial
050928129D0AFBD87A8ACC6C23C615907485
SHA-256 fingerprint
F6:4C:14:B7:5D:04:FF:3D:EE:01:6B:FD:80:ED:52:41:1E:04:76:0A:43:04:AD:EB:D0:20:A1:DB:2A:FA:46:34
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
t-auto.dk, www.t-auto.dk

Certificate Authority Authorization (CAA)

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

We've observed 1 previous certificate for this host. This certificate has been served since Sep 12, 2026.

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Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

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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