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 gemag-immobilien.ch

Valid
Issued by (CA)
Let's Encrypt
Subject
gemag-immobilien.ch
Valid from
May 24, 2026
Valid until
Aug 22, 2026 (29 days remaining)
Public key
RSA 2048-bit
Serial
05DE83A892E07E09EA4978A065094F536FED
SHA-256 fingerprint
7A:EE:DF:79:25:2A:A3:30:2E:D3:C4:E1:5F:86:87:5C:52:AB:8D:FC:E3:4B:A1:3B:8F:41:D6:E4:85:DA:A1:6E
Chain
R13 → ISRG Root X1
Subject Alternative Names (1)
gemag-immobilien.ch

Certificate Authority Authorization (CAA)

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

Never get surprised by gemag-immobilien.ch's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch gemag-immobilien.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.