SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sit-wb.dk
SSL/TLS Certificate
SSL/TLS Certificate for sit-wb.dk
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.sit-wb.dk
- Valid from
- Jul 8, 2026
- Valid until
- Jan 22, 2027 (92 days remaining)
- Public key
- RSA 4096-bit
- Serial
- D766FDF7299F1A5A3159032DF18DF458
- SHA-256 fingerprint
- 76:4A:FF:93:8C:70:63:D3:D1:2B:32:AF:B1:00:68:33:0D:7E:34:C0:F8:F1:83:7E:A2:47:DC:C7:48:3C:58:A6
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46
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 Sep 19, 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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