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 konar-sklep.pl

Valid
Issued by (CA)
Let's Encrypt
Subject
ftp.konar-sklep.pl
Valid from
Aug 16, 2026
Valid until
Nov 14, 2026 (66 days remaining)
Public key
EC 384-bit
Serial
061F2FF69B35920CE25DFEE404DC154AACA0
SHA-256 fingerprint
45:83:AC:0F:B6:92:9B:78:67:96:A6:22:54:08:D5:BB:0E:19:1A:6F:67:9F:4F:64:BB:1D:37:25:9C:82:C2:F7
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (6)
ftp.konar-sklep.pl, konar-sklep.pl, mail.konar-sklep.pl, pop.konar-sklep.pl, smtp.konar-sklep.pl, www.konar-sklep.pl

Certificate Authority Authorization (CAA)

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

Never get surprised by konar-sklep.pl's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch konar-sklep.pl 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.