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 sw-ps.ch

Valid
Issued by (CA)
Let's Encrypt
Subject
Valid from
Sep 1, 2026
Valid until
Oct 16, 2026 (41 days remaining)
Public key
EC 256-bit
Serial
06713CAEA8B1802727E45EF4B9E2FAA7C8A1
SHA-256 fingerprint
28:31:02:B6:5F:EE:78:BB:91:D7:A9:88:62:3A:20:B4:80:95:D5:5D:DA:96:20:C6:A7:DC:2F:1E:C7:A2:94:CB
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (1)
sw-ps.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 Aug 23, 2026.

Never get surprised by sw-ps.ch's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch sw-ps.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.