SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
j-tec1001.com
SSL/TLS Certificate
SSL/TLS Certificate for j-tec1001.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- j-tec1001.com
- Valid from
- Oct 3, 2026
- Valid until
- Jan 1, 2027 (53 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06DDA32B7DCAD6201CA5D6C37B2F541E12D5
- SHA-256 fingerprint
- 50:25:D7:83:AE:56:96:21:CD:0A:A6:08:CF:1E:C1:84:4E:A7:44:A8:4D:E4:6F:65:01:99:90:26:B8:63:4A:02
- 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.
This certificate has been served since Oct 30, 2026.
Never get surprised by j-tec1001.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch j-tec1001.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, CNAME, TXT 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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