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 j-tek.ca
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- files.jtek.ca
- Valid from
- Jul 6, 2026
- Valid until
- Oct 4, 2026 (71 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 059F5DB9BABA4C7CCC17829C16537789D79D
- SHA-256 fingerprint
- E4:F2:50:1F:F1:F7:86:A6:A7:F6:A9:E0:3A:96:41:A5:62:43:D5:83:F7:FB:8B:28:9A:AF:CF:7F:1D:51:F4:6C
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Jul 23, 2026.
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Uptime
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DNS changes
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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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