SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for admin.ch
Expiring soon- Issued by (CA)
- SwissSign AG
- Subject
- admin.ch
- Valid from
- Apr 7, 2026
- Valid until
- Oct 22, 2026 (15 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 645C2D558BB3C1AED871A033F6C7500093C77DCD
- SHA-256 fingerprint
- AD:E8:7B:12:07:A8:09:16:8D:CE:80:72:DF:FA:F4:CC:A2:44:59:1B:B1:74:A3:A1:34:AF:DC:39:40:DE:7E:FE
- Chain
- SwissSign RSA TLS OV ICA 2022 - 1 → SwissSign RSA TLS Root CA 2022 - 1
Certificate Authority Authorization (CAA)
CAA restricts issuance to awstrust.com, comodoca.com, digicert.com, letsencrypt.org, swisssign.com; we couldn't map the serving CA (SwissSign AG) to one of these identifiers.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 27, 2026.
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Uptime
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DNS changes
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TLS certificate
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