SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
krok-kancelaria.pl
SSL/TLS Certificate
SSL/TLS Certificate for krok-kancelaria.pl
Valid- Issued by (CA)
- nazwa.pl Sp. z o.o.
- Subject
- krok-kancelaria.pl
- Valid from
- Oct 8, 2026
- Valid until
- Apr 13, 2027 (149 days remaining)
- Public key
- EC 384-bit
- Serial
- 7AFE227E9983FA0C6D2CB31B5DAB44BD
- SHA-256 fingerprint
- 35:A4:A8:4A:EF:E7:47:55:58:DD:F6:1A:44:99:5B:15:1F:BC:D8:DA:40:C7:62:8F:FD:A7:B5:F5:6C:6B:4B:53
- Chain
- nazwaSSL DV TLS G2 E29 CA → Certum EC-384 CA
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.
Never get surprised by krok-kancelaria.pl's certificate expiring
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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, CNAME, TXT 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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