SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sgr-sssr.ch
SSL/TLS Certificate
SSL/TLS Certificate for sgr-sssr.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- sgr-sssr.ch
- Valid from
- Jul 13, 2026
- Valid until
- Oct 11, 2026 (74 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05150B543CA40DBFA6F601F923C8AE66125F
- SHA-256 fingerprint
- EA:4D:1C:10:3D:8B:3A:4E:36:F3:F4:7D:6F:30:04:52:00:F3:A5:19:9B:88:9B:B1:05:6C:6B:5A:B4:F9:0D:88
- 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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This is today's certificate. Turn on monitoring and we'll watch sgr-sssr.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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