SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gespa-energy.de
SSL/TLS Certificate
SSL/TLS Certificate for gespa-energy.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- gespa-energy.de
- Valid from
- Aug 24, 2026
- Valid until
- Nov 22, 2026 (36 days remaining)
- Public key
- EC 256-bit
- Serial
- 066BA23E554C746906173C62DBFDCB111BF0
- SHA-256 fingerprint
- E1:F0:60:7D:D5:85:F0:A0:BB:69:F7:81:51:2B:8E:91:FC:0B:56:55:96:5A:01:04:45:AD:F9:3B:52:E8:53:73
- 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 8, 2026.
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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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