SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
citti-flensburg.de
SSL/TLS Certificate
SSL/TLS Certificate for citti-flensburg.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- citti-flensburg.de
- Valid from
- Sep 21, 2026
- Valid until
- Dec 20, 2026 (89 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06BF16778C37867876DE73AE05D95DD40CF3
- SHA-256 fingerprint
- 80:1F:B4:2F:E7:F8:FC:FE:F3:AA:1C:0F:9E:81:66:CE:F9:2B:C6:6E:50:79:89:F8:67:99:2F:1B:74:8D:E4:03
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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DNS changes
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TLS certificate
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