SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ces-cl.edu.br
SSL/TLS Certificate
SSL/TLS Certificate for ces-cl.edu.br
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.ces-cl.edu.br
- Valid from
- Sep 29, 2026
- Valid until
- Dec 28, 2026 (74 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05E8ED14497F1EE11A6129847D70141FDC07
- SHA-256 fingerprint
- FA:A2:C8:F7:F1:26:DC:DD:17:8F:41:29:B7:37:C1:91:B7:4F:60:2C:47:AE:DA:AC:9F:18:2E:9B:7F:02:D6:91
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Oct 6, 2026.
Never get surprised by ces-cl.edu.br's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ces-cl.edu.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.