SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sm-budowlani.com.pl
SSL/TLS Certificate
SSL/TLS Certificate for sm-budowlani.com.pl
Valid- Issued by (CA)
- nazwa.pl Sp. z o.o.
- Subject
- sm-budowlani.com.pl
- Valid from
- May 20, 2026
- Valid until
- Nov 19, 2026 (93 days remaining)
- Public key
- EC 384-bit
- Serial
- 622A4C3D65C9C403E451A48524B9806A
- SHA-256 fingerprint
- FC:6D:27:0A:CE:AA:7C:20:3F:2E:58:08:2A:FE:85:7C:57:14:80:3D:97:DD:EA:94:FC:3B:A7:A2:62:E4:C6:5A
- 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 sm-budowlani.com.pl's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sm-budowlani.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.
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