SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
u-star.com.br
SSL/TLS Certificate
SSL/TLS Certificate for u-star.com.br
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.u-star.com.br
- Valid from
- Aug 20, 2026
- Valid until
- Nov 18, 2026 (53 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06B380F5F5F9CC8EDAB636A4826BA3A5FBE5
- SHA-256 fingerprint
- DC:29:6D:3C:BB:6C:B4:64:CB:52:F6:2C:25:57:F7:EA:67:40:57:0F:BE:50:3A:ED:6C:6F:89:3E:CA:1D:5B:57
- 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.
This certificate has been served since Aug 25, 2026.
Never get surprised by u-star.com.br's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch u-star.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.
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