SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
zitelab.dk
SSL/TLS Certificate
SSL/TLS Certificate for zitelab.dk
Untrusted chain- Issued by (CA)
- Sectigo Limited
- Subject
- zitelab.dk
- Valid from
- Jun 5, 2026
- Valid until
- Dec 20, 2026 (82 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 87FA20B9FB65A4131CC23010DA9D9A36
- SHA-256 fingerprint
- 13:4D:EF:F0:81:91:09:92:E6:B5:EA:23:84:C0:2B:D5:C0:25:3D:F6:A0:6D:D5:DB:21:64:B1:82:8A:2E:1A:70
- Chain
- —
Certificate Authority Authorization (CAA)
This certificate has been served since Sep 11, 2026.
Never get surprised by zitelab.dk's certificate expiring
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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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