SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jef-it.com
SSL/TLS Certificate
SSL/TLS Certificate for jef-it.com
Valid- Issued by (CA)
- Google Trust Services
- Subject
- jef-it.com
- Valid from
- Jul 3, 2026
- Valid until
- Oct 1, 2026 (54 days remaining)
- Public key
- EC 256-bit
- Serial
- 23834E958BB136470EF593484E435FD6
- SHA-256 fingerprint
- 02:54:FC:07:9E:E6:8C:F1:08:8F:2D:CA:3F:D2:6B:6D:8F:EE:26:94:B8:E1:88:B9:B0:CF:41:DD:C3:24:9E:21
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by jef-it.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch jef-it.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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