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 familjen-salminen.se

Hostname mismatch
Issued by (CA)
Let's Encrypt
Subject
cloud.spix.nu
Valid from
Jul 22, 2026
Valid until
Oct 20, 2026 (64 days remaining)
Public key
EC 256-bit
Serial
05D9A2CE67648743857AE61DF0872658268B
SHA-256 fingerprint
D1:84:C0:47:3D:CF:A0:32:45:71:01:9E:AC:32:81:93:70:A6:57:C4:C5:6A:F5:61:B0:1F:C0:75:61:BB:9F:53
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (1)
cloud.spix.nu

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).

Never get surprised by familjen-salminen.se's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch familjen-salminen.se 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.