SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
swisstopo.ch
SSL/TLS Certificate
SSL/TLS Certificate for swisstopo.ch
Valid- Issued by (CA)
- SwissSign AG
- Subject
- www.swisstopo.ch
- Valid from
- May 13, 2026
- Valid until
- Nov 27, 2026 (105 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 6BB00DA00D63878676524A14FF98C80AD5A54C73
- SHA-256 fingerprint
- 8C:04:E9:6A:07:5C:1F:FD:2F:5B:18:11:A5:13:A3:8C:22:B4:2E:66:7C:B4:5D:73:5C:D0:6C:A4:54:3C:12:6F
- Chain
- SwissSign RSA TLS OV ICA 2022 - 1 → SwissSign RSA TLS Root CA 2022 - 1 → SwissSign Gold CA - G2
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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This is today's certificate. Turn on monitoring and we'll watch swisstopo.ch continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
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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