SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
u-bahn-muenchen.de
SSL/TLS Certificate
SSL/TLS Certificate for u-bahn-muenchen.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- u-bahn-muenchen.de
- Valid from
- Jun 9, 2026
- Valid until
- Sep 7, 2026 (46 days remaining)
- Public key
- EC 256-bit
- Serial
- 0679280ECC82572227674B21A66DC143D6FA
- SHA-256 fingerprint
- F6:4A:79:A8:D6:F4:5F:FB:E2:B0:7E:95:6C:22:40:5C:0D:23:C0:C9:3D:20:82:46:09:E5:93:EE:29:F5:DC:DD
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com).
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Uptime
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DNS changes
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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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