SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
mainzer-stadtwerke.de
SSL/TLS Certificate
SSL/TLS Certificate for mainzer-stadtwerke.de
Valid- Issued by (CA)
- DigiCert Inc
- Subject
- *.mainzer-stadtwerke.de
- Valid from
- Feb 10, 2026
- Valid until
- Feb 18, 2027 (186 days remaining)
- Public key
- RSA 3072-bit
- Serial
- 027CD8F0B5343DDFE88A604D75A0D107
- SHA-256 fingerprint
- E1:EF:D3:C0:C4:30:F4:21:13:C2:01:A6:6A:7E:39:18:8B:C9:31:00:F4:1A:E5:A1:DD:31:B2:D2:23:5A:47:D0
- Chain
- Thawte TLS RSA CA G1 → DigiCert Global Root G2
Certificate Authority Authorization (CAA)
The serving CA (DigiCert Inc) is authorized by this domain's CAA records (digicert.com, letsencrypt.org).
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Uptime
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DNS changes
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TLS certificate
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