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 x-dns.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- x-dns.ch
- Valid from
- Aug 22, 2026
- Valid until
- Nov 20, 2026 (72 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05A16118D46E5B30AC7CEDD84B3EDEFDE531
- SHA-256 fingerprint
- 4D:73:A2:CE:B0:37:B1:08:F0:B6:D6:8F:3B:EB:7F:F1:FE:AF:56:6A:51:BC:A3:C8:EF:9A:75:F5:F6:CD:95:84
- 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 Jul 23, 2026.
Never get surprised by x-dns.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch x-dns.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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