SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
pre-puc.com.br
SSL/TLS Certificate
SSL/TLS Certificate for pre-puc.com.br
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- pre-puc.com.br
- Valid from
- Aug 19, 2026
- Valid until
- Nov 17, 2026 (68 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06F18B54618CAF4AB11BCBB61EE4BCECC46F
- SHA-256 fingerprint
- 98:88:01:F2:37:45:DA:A5:52:99:DC:46:16:02:EB:5B:93:12:FE:BE:29:B1:D9:CA:2F:1E:62:DD:A8:D3:1B:BC
- 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 5, 2026.
Never get surprised by pre-puc.com.br's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch pre-puc.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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