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 fm-alive.com

Valid
Issued by (CA)
Sectigo Limited
Subject
*.fm-alive.com
Valid from
Dec 14, 2025
Valid until
Dec 28, 2026 (144 days remaining)
Public key
RSA 2048-bit
Serial
10F3028D34434C9963F8BC4FDF8433B3
SHA-256 fingerprint
1B:73:E0:0A:4F:C0:79:6E:AD:12:A3:88:BA:6A:2B:D5:7C:23:C7:F6:2B:71:20:A2:BD:01:CA:6F:0F:0D:54:9E
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (2)
*.fm-alive.com, fm-alive.com

Certificate Authority Authorization (CAA)

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

Never get surprised by fm-alive.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch fm-alive.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.