SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
1-domaene.dk
SSL/TLS Certificate
SSL/TLS Certificate for 1-domaene.dk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- 1-domaene.dk
- Valid from
- Aug 9, 2026
- Valid until
- Nov 7, 2026 (64 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05A8318C2A71D2EB0E741B0A4556EC7D1194
- SHA-256 fingerprint
- C6:F6:FD:07:24:9A:BA:F7:F4:B1:5F:8D:FC:FD:79:12:FE:32:34:09:80:06:BD:2C:CF:BF:B1:E9:4C:91:58:FC
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Aug 18, 2026.
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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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