SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ctecnologia.com.br
SSL/TLS Certificate
SSL/TLS Certificate for ctecnologia.com.br
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- ctecnologia.com.br
- Valid from
- Feb 23, 2026
- Valid until
- May 24, 2026 (expired 164 days ago)
- Public key
- RSA 4096-bit
- Serial
- 0614DAD82D9416B377786FF2240CC74B0A52
- SHA-256 fingerprint
- 53:61:1B:93:CF:57:67:A4:91:D8:45:07:9E:DB:22:C4:0E:4A:10:AC:00:F0:55:6F:C6:82:3C:B5:6D:D2:A3:83
- Chain
- R13 → 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 Oct 4, 2026.
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TLS certificate
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