SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
lucyna-filipiak.com
SSL/TLS Certificate
SSL/TLS Certificate for lucyna-filipiak.com
Valid- Issued by (CA)
- Google Trust Services
- Subject
- tls.automattic.com
- Valid from
- Aug 7, 2026
- Valid until
- Nov 5, 2026 (49 days remaining)
- Public key
- EC 256-bit
- Serial
- CABDC2BD5297B4CA1380B3809C4A3F2A
- SHA-256 fingerprint
- DE:DC:29:92:41:6D:6D:6A:0D:42:26:5D:6E:74:98:F9:67:3D:A0:23:9D:94:7F:26:14:05:48:31:EA:1A:F1:9C
- Chain
- WR1 → GTS Root R1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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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, 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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