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 koper-law.pl

Valid
Issued by (CA)
nazwa.pl Sp. z o.o.
Subject
koper-law.pl
Valid from
May 1, 2026
Valid until
Nov 7, 2026 (40 days remaining)
Public key
EC 384-bit
Serial
0D7E58FA18C2782235F950F7E6C38FCB
SHA-256 fingerprint
B6:CA:03:BD:8B:00:FB:38:61:06:6B:54:40:3E:FD:30:62:F0:80:EF:B1:88:43:E6:49:F1:72:53:C2:E1:B5:87
Chain
nazwaSSL DV TLS G2 E29 CA → Certum EC-384 CA → Certum Trusted Network CA
Subject Alternative Names (2)
koper-law.pl, www.koper-law.pl

Certificate Authority Authorization (CAA)

CAA restricts issuance to certum.pl, letsencrypt.org; we couldn't map the serving CA (nazwa.pl Sp. z o.o.) to one of these identifiers.

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Uptime

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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.

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