SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
cp-spectrum.pl
SSL/TLS Certificate
SSL/TLS Certificate for cp-spectrum.pl
Valid- Issued by (CA)
- Google Trust Services
- Subject
- cp-spectrum.pl
- Valid from
- Sep 15, 2026
- Valid until
- Dec 14, 2026 (52 days remaining)
- Public key
- EC 256-bit
- Serial
- 376D12ABEFD26CD213584673FC2382F4
- SHA-256 fingerprint
- 0B:03:4D:AC:B5:07:7E:F4:62:40:0A:31:90:5C:40:46:61:B2:BD:6A:DA:BD:CB:E0:E8:BB:94:45:63:76:35:8C
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by cp-spectrum.pl's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch cp-spectrum.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, 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.