SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
fasada-system.com
SSL/TLS Certificate
SSL/TLS Certificate for fasada-system.com
Valid- Issued by (CA)
- nazwa.pl Sp. z o.o.
- Subject
- fasada-system.com
- Valid from
- Oct 23, 2026
- Valid until
- Apr 29, 2027 (176 days remaining)
- Public key
- EC 384-bit
- Serial
- 7B0D871BCAA9CA2585D00057E227CB
- SHA-256 fingerprint
- 9F:94:B7:A1:28:8D:B8:14:43:23:8A:4E:85:D4:9A:A8:5C:E2:5B:8E:63:CF:8F:05:46:E8:58:68:7C:94:C2:9C
- 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.
This certificate has been served since Oct 29, 2026.
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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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