SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
virtualtec.ch
SSL/TLS Certificate
SSL/TLS Certificate for virtualtec.ch
Expiring soon- Issued by (CA)
- Let's Encrypt
- Subject
- clouddesk.ch
- Valid from
- May 10, 2026
- Valid until
- Aug 8, 2026 (16 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 062F758580F4599423C933A5A294BF12B07B
- SHA-256 fingerprint
- 65:64:4A:A4:5C:7A:E1:E9:73:3F:27:1D:83:CB:7F:FE:0C:58:76:A6:12:19:04:3A:83:92:31:0A:F4:90:9A:25
- Chain
- R12 → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (6621.unknown-ca.caarecord.org, 6644.unknown-ca.caarecord.org, globalsign.com, letsencrypt.org).
Never get surprised by virtualtec.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch virtualtec.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.