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 j-host.ch

Valid
Issued by (CA)
Let's Encrypt
Subject
j-host.ch
Valid from
Jun 23, 2026
Valid until
Sep 21, 2026 (60 days remaining)
Public key
RSA 2048-bit
Serial
05810874006DA98412285D557D4DC3120A2D
SHA-256 fingerprint
F8:87:AF:D2:DB:49:4C:10:95:F6:85:A9:31:01:8B:08:85:57:2D:FB:52:82:CD:EC:1B:53:FF:08:AC:ED:B1:F9
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (1)
j-host.ch

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

Never get surprised by j-host.ch's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch j-host.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.