Real-time monitoring of RISE and NETNOD NTP servers is done by using a NTPLogger that can be reached at sp.ntplog.sp.se. These pages show NTP statistics from a client perspective. Traceability measures are documented.
For those RISE servers that are based on David Mills NTP distribution, see ntp.org, we provide our classical set of NTP statistics:
ntp1.sp.sentp2.sp.sentp3.sp.se AUTOKEY test server, occasionally out of service
Servers at the NETNOD Internet exchange points
Phone: +46 10 516 54 40
Phone: +46 10 516 54 08