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 sama-gusto.com

Valid
Issued by (CA)
Let's Encrypt
Subject
samagusto.ch
Valid from
Jul 26, 2026
Valid until
Oct 24, 2026 (42 days remaining)
Public key
RSA 2048-bit
Serial
06C4F335D626A3C9CF99108343502E11BE0A
SHA-256 fingerprint
26:94:A6:B9:18:28:03:6C:98:49:E4:47:82:DD:17:B4:78:0E:62:DD:20:EE:B4:2A:89:37:3B:E0:1D:EE:91:9F
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (9)
sama-gusto.ch, sama-gusto.com, samagusto.ch, samagusto.com, webmail.samagusto.ch, www.sama-gusto.ch, www.sama-gusto.com, www.samagusto.ch, www.samagusto.com

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 27, 2026.

Never get surprised by sama-gusto.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch sama-gusto.com 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.