SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
zdz-plock.com.pl
SSL/TLS Certificate
SSL/TLS Certificate for zdz-plock.com.pl
Valid- Issued by (CA)
- nazwa.pl Sp. z o.o.
- Subject
- zdz-plock.com.pl
- Valid from
- Jul 1, 2026
- Valid until
- Jan 2, 2027 (157 days remaining)
- Public key
- EC 384-bit
- Serial
- 2992A8DB2F5BBF407EB162CB6CEF46BC
- SHA-256 fingerprint
- FA:40:EE:B4:C0:F7:45:C0:C8:B9:D3:DD:EF:3D:0F:BA:12:A9:26:33:8D:22:17:E3:43:FB:38:3A:35:47:58:71
- Chain
- nazwaSSL DV TLS G2 E29 CA → Certum EC-384 CA → Certum Trusted Network 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 zdz-plock.com.pl's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch zdz-plock.com.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.