SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
tommerup-efterskole.dk
SSL/TLS Certificate
SSL/TLS Certificate for tommerup-efterskole.dk
Valid- Issued by (CA)
- Google Trust Services
- Subject
- tommerup-efterskole.dk
- Valid from
- Aug 10, 2026
- Valid until
- Nov 8, 2026 (66 days remaining)
- Public key
- EC 256-bit
- Serial
- DEDE547405A628020EF50BBD9BA4CBF9
- SHA-256 fingerprint
- 27:20:BA:31:19:3C:7F:45:CF:1C:62:4D:CA:7B:44:A0:1F:72:26:AD:36:CA:E3:B1:70:C4:23:C2:B9:37:58:8F
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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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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