SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sda-pat.ca
SSL/TLS Certificate
SSL/TLS Certificate for sda-pat.ca
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- sda-pat.ca
- Valid from
- May 24, 2026
- Valid until
- Aug 22, 2026 (31 days remaining)
- Public key
- EC 256-bit
- Serial
- 050A5C2181249F0CE6049CF4B234B843C48B
- SHA-256 fingerprint
- EA:2C:F1:AB:D0:1F:3A:39:1E:00:CA:FC:B8:B7:A5:41:9F:F0:B3:52:3B:85:69:99:C4:79:5D:2E:FE:7F:97:2F
- Chain
- E8 → 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 sda-pat.ca's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sda-pat.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, 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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