SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
opalrad.com.br
SSL/TLS Certificate
SSL/TLS Certificate for opalrad.com.br
Expiring soon- Issued by (CA)
- Let's Encrypt
- Subject
- opalrad.com.br
- Valid from
- May 12, 2026
- Valid until
- Aug 10, 2026 (13 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 060B1A1DAD60A4F3B78B968D034E0D80C75F
- SHA-256 fingerprint
- DF:6A:2C:D6:F6:84:81:42:FF:68:9C:49:45:34:BF:3F:CE:6F:33:57:83:53:92:51:47:D8:30:52:DB:CB:E6:A4
- Chain
- R12 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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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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