SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sefin.ro.gov.br
SSL/TLS Certificate
SSL/TLS Certificate for sefin.ro.gov.br
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- sefin.ro.gov.br
- Valid from
- Feb 12, 2026
- Valid until
- Feb 12, 2027 (193 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 6D7A17FA12592B17F3B91C5ED36E1613
- SHA-256 fingerprint
- A2:03:DA:53:9C:2D:CD:13:F2:E7:89:8C:32:56:02:8C:8C:90:95:29:6E:02:92:11:33:7D:2E:AC:9D:D9:84:4C
- Chain
- Sectigo Public Server Authentication CA OV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Certificate Authority Authorization (CAA)
The serving CA (Sectigo Limited) is authorized by this domain's CAA records (amazon.com, letsencrypt.org, pki.goog, sectigo.com, trust-provider.com, usertrust.com).
Never get surprised by sefin.ro.gov.br's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sefin.ro.gov.br 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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