SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for j-ns.net
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- j-ns.net
- Valid from
- Jun 17, 2026
- Valid until
- Sep 15, 2026 (33 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05BFA16FAE87A38E10A766F840B427328868
- SHA-256 fingerprint
- 57:C0:86:E1:9A:EE:45:15:F7:9A:3D:7F:B4:76:AE:7D:C8:28:D0:54:DE:6D:5D:4C:66:7D:FF:4F:22:C1:22:E8
- 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.
Never get surprised by j-ns.net's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch j-ns.net 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.