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 rubikon-plast.com.ua

Valid
Issued by (CA)
Let's Encrypt
Subject
ftp.rubikon-plast.com.ua
Valid from
Aug 29, 2026
Valid until
Nov 27, 2026 (71 days remaining)
Public key
EC 384-bit
Serial
05B49AB47FFE7CC194E639993655907824B0
SHA-256 fingerprint
63:2E:4C:B2:98:B1:23:90:63:8F:57:C2:36:4D:A8:5F:12:9B:0B:39:07:AB:D8:3D:33:20:44:1C:79:03:FA:0D
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (5)
ftp.rubikon-plast.com.ua, mail.rubikon-plast.com.ua, pop.rubikon-plast.com.ua, rubikon-plast.com.ua, www.rubikon-plast.com.ua

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 Aug 12, 2026.

Never get surprised by rubikon-plast.com.ua's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch rubikon-plast.com.ua 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.