SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
net-oficial.com.br
SSL/TLS Certificate
SSL/TLS Certificate for net-oficial.com.br
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- net-oficial.com.br
- Valid from
- Jul 22, 2026
- Valid until
- Oct 20, 2026 (87 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05332C25F888B3CB13FF310543E314F1668F
- SHA-256 fingerprint
- 42:FE:D1:E1:44:9E:92:3D:63:2F:A6:40:13:63:43:E8:3E:32:8D:16:B1:97:B3:2D:A5:95:6B:0A:02:31:41:2F
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by net-oficial.com.br's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch net-oficial.com.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.