SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
claro-aarau.ch
SSL/TLS Certificate
SSL/TLS Certificate for claro-aarau.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- claro-aarau.ch
- Valid from
- Sep 20, 2026
- Valid until
- Dec 19, 2026 (48 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06CEAB9CFBEC024CEFD4AB2101780F21A4DC
- SHA-256 fingerprint
- 0A:D8:7C:74:EE:74:0A:80:AA:DE:E5:80:00:49:E9:C9:39:4D:71:FE:DD:92:98:44:0C:63:26:63:FE:74:E6:F2
- 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 25, 2026.
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Uptime
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DNS changes
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TLS certificate
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