SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jh-tec.com
SSL/TLS Certificate
SSL/TLS Certificate for jh-tec.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- jh-tec.com
- Valid from
- Sep 5, 2026
- Valid until
- Dec 4, 2026 (77 days remaining)
- Public key
- EC 256-bit
- Serial
- 06C6AFD06C87BFE805651F030A2C8DD6DA4E
- SHA-256 fingerprint
- C2:DD:30:80:68:D1:35:35:9E:9D:9E:C8:26:A9:63:6F:02:41:68:6E:70:36:94:90:C6:03:E0:A6:F9:CE:31:49
- Chain
- YE1 → Root YE → ISRG Root X2 → 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 Sep 7, 2026.
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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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