SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
asger-jensen.dk
SSL/TLS Certificate
SSL/TLS Certificate for asger-jensen.dk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- asger-jensen.dk
- Valid from
- Oct 11, 2026
- Valid until
- Jan 9, 2027 (59 days remaining)
- Public key
- EC 256-bit
- Serial
- 0564DD475C77D524EAFDEA93DE5C032021FC
- SHA-256 fingerprint
- A1:59:BF:AE:B5:35:41:6C:D1:F1:93:2E:BA:3F:FB:24:3A:D4:96:13:4E:84:30:50:B5:AB:7B:22:98:27:F2:ED
- Chain
- YE1 → Root YE → ISRG Root X2 → 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 Oct 6, 2026.
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Uptime
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DNS changes
We watch NS, MX, CAA, CNAME, TXT 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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