SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jet-edu.com
SSL/TLS Certificate
SSL/TLS Certificate for jet-edu.com
Hostname mismatch- Issued by (CA)
- ZeroSSL GmbH
- Subject
- gzjet.cn
- Valid from
- Jul 31, 2026
- Valid until
- Oct 29, 2026 (14 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 8629F3416ACF20640B0A97ECB1B58AF5
- SHA-256 fingerprint
- 5D:68:26:86:9F:FE:01:DB:B4:06:72:22:A6:A5:44:8C:BC:1B:B0:35:09:41:AE:03:AC:83:B2:18:0B:AA:2C:82
- Chain
- ZeroSSL RSA DV SSL CA 2 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
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 Oct 11, 2026.
Never get surprised by jet-edu.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch jet-edu.com 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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