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 p-zm.com

Valid
Issued by (CA)
Let's Encrypt
Subject
p-zm.com
Valid from
Jul 22, 2026
Valid until
Oct 20, 2026 (73 days remaining)
Public key
EC 384-bit
Serial
0559CF74C240B2D31A3F52768CFA92C4C514
SHA-256 fingerprint
4B:8A:5B:48:8D:A2:54:AB:BE:4F:03:4A:B4:44:E1:99:A4:4A:9D:47:A2:F3:99:CC:1D:80:59:50:6D:51:C4:8A
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (7)
ftp.p-zm.com, mail.p-zm.com, p-zm.com, poczta.p-zm.com, pop.p-zm.com, smtp.p-zm.com, www.p-zm.com

Certificate Authority Authorization (CAA)

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

Never get surprised by p-zm.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch p-zm.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.