SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
nazwa-pro.eu
SSL/TLS Certificate
SSL/TLS Certificate for nazwa-pro.eu
Valid- Issued by (CA)
- nazwa.pl Sp. z o.o.
- Subject
- nazwa-pro.eu
- Valid from
- Jun 9, 2026
- Valid until
- Dec 25, 2026 (52 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 592514A6DB530C8303FE4E349476CC42
- SHA-256 fingerprint
- 65:93:89:11:DF:A6:D3:48:C0:64:5C:EB:F7:33:55:9D:22:3A:92:C2:FB:8D:47:5E:56:B2:8A:72:12:8B:41:15
- Chain
- nazwaSSL DV TLS G2 R29 CA → Certum Trusted Root 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.
This certificate has been served since Sep 8, 2026.
Never get surprised by nazwa-pro.eu's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch nazwa-pro.eu 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, 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.