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 mal-mal.dk

Hostname mismatch
Issued by (CA)
Sectigo Limited
Subject
simply.com
Valid from
Sep 29, 2026
Valid until
Apr 15, 2027 (196 days remaining)
Public key
RSA 2048-bit
Serial
531E47EFF429F4027BACDD2117B0ABD9
SHA-256 fingerprint
73:70:50:DE:1B:9B:3A:14:D8:0E:A8:B1:9D:A1:02:6D:63:26:46:82:E5:B9:17:06:71:4E:33:A9:4A:B3:9C:01
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (4)
*.simply.com, *.unoeuro.com, simply.com, unoeuro.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 Sep 30, 2026.

Never get surprised by mal-mal.dk's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch mal-mal.dk 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.