SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
bas-on.de
SSL/TLS Certificate
SSL/TLS Certificate for bas-on.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- bas-on.de
- Valid from
- Sep 11, 2026
- Valid until
- Dec 10, 2026 (63 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06367E0A34FFE5A58F67CA8C846029D7677E
- SHA-256 fingerprint
- 2F:CD:F4:3C:D3:DD:4F:11:FB:61:33:24:EB:61:D0:67:D6:C9:2D:30:18:E2:64:49:A1:B3:C2:9F:E9:F3:E1:9B
- 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.
This certificate has been served since Sep 29, 2026.
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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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