SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
pur-air.ca
SSL/TLS Certificate
SSL/TLS Certificate for pur-air.ca
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.pur-air.ca
- Valid from
- Jun 16, 2026
- Valid until
- Sep 14, 2026 (41 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 050F38172F0F32CECD2D07442687ED30F6BC
- SHA-256 fingerprint
- C8:BB:4E:A0:90:90:AC:45:80:FF:55:C6:F0:BB:79:2B:D6:97:34:A6:97:1A:A1:A4:1C:41:A6:0D:30:E6:12:81
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org, pki.goog, sectigo.com).
Never get surprised by pur-air.ca's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch pur-air.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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