SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for c-pac.ca
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- c-pac.ca
- Valid from
- Oct 23, 2026
- Valid until
- Jan 21, 2027 (73 days remaining)
- Public key
- EC 256-bit
- Serial
- 06DCE16125AEF02C5706A2C950B4A2ABD388
- SHA-256 fingerprint
- 99:64:74:FD:7E:70:E3:65:1D:08:EE:8B:D8:82:8A:03:D1:F4:2D:49:A4:6C:9A:31:82:7D:20:57:79:B3:C6:FC
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by c-pac.ca's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch c-pac.ca 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.