SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
zbuduj-komputer.pl
SSL/TLS Certificate
SSL/TLS Certificate for zbuduj-komputer.pl
Valid- Issued by (CA)
- Google Trust Services
- Subject
- zbuduj-komputer.pl
- Valid from
- Sep 4, 2026
- Valid until
- Dec 3, 2026 (47 days remaining)
- Public key
- RSA 2048-bit
- Serial
- DE32CD1BC32EC4ED0AE7CAD53A4CBD6F
- SHA-256 fingerprint
- 93:9F:A6:8B:03:16:3F:49:03:14:70:69:66:E0:39:CC:43:F4:56:6D:CC:08:8A:65:31:1F:E5:34:AB:E8:8A:E1
- Chain
- WR3 → GTS Root R1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Sep 25, 2026.
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Uptime
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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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