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 wicom.ch

Valid
Issued by (CA)
Let's Encrypt
Subject
wicom.ch
Valid from
Jul 19, 2026
Valid until
Oct 17, 2026 (41 days remaining)
Public key
EC 256-bit
Serial
05C8B9220F0F3FD3B3A4CA5ABD21D1EA7D87
SHA-256 fingerprint
B7:D4:B4:F1:93:8B:F8:74:93:F9:91:B6:CB:45:F7:54:4F:53:08:3A:53:EB:65:A0:51:31:B5:74:D6:78:96:22
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
wicom.ch, www.wicom.ch

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 Sep 2, 2026.

Never get surprised by wicom.ch's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch wicom.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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.