Web Hosting Unlimited Faster SSD IPv6 HTTP/2 + SSL Certificates
Ad High performance linux servers implementing ISPConfig open source control panel with newest connectivity, encryption and protocol support

NTP Server Online Tester

This tool is useful to check if a given Network Time Protocol server is reachable over the internet using IPv4 and IPv6 connectivity.

It is also useful for knowing the resulting offset using the exact time of 1a.ncomputers.org stratum 2 NTP public server.

It uses ntpdate -q to perform a time synchronization query which works for linux servers, windows servers, etc.

This website IPv4 and IPv6 addresses are and 2a02:c207:2010:9464::1

The following tasks may help you pass this server test in case of trouble: Recommended for linux server admins and linux users:

How to join your linux server to the NTP pool project
How to query and test an NTP server using ntpdate