RIPE NCC DNS Monitoring Services
The RIPE NCC DNS Monitoring Service (DNSMON) provides a comprehensive,
objective and up-to-date overview of the quality of the
service offered by high-level Domain Name System (DNS) servers. It is an
active measurement service. It uses our Test
Traffic Measurements (TTM) network to provide an up-to-date service
overview of certain DNS root and Top-Level Domain (TLD) name servers. An
important feature is the ability to view historical data. This allows quick
analysis of both past and present DNS issues.
Development of the service started in 2003. During the development
phase, we offered the service free of charge to the entire Internet community.
This changed on 1 March 2005 when it became a regular production service.
In 2012, the RIPE NCC membership approved a Charging Scheme that says DNSMON
must become a member service from 1 January 2013.
DNSMON measures DNS performance between sites that take part in the TTM
service and those where DNS servers are installed. The high number of probes
and the method of presenting the results are unique. The
information is updated every hour.
The measurements are presented at various levels of granularity,
allowing users to switch between general representations and more detailed
views specific to particular domains, servers, and probes for freely selectable
The RIPE NCC plans to phase out use of the TTM service in 2013 and gradually integrate the DNSMON into the RIPE Atlas service, using RIPE Atlas Anchors as vantage points. The data presentation and visualisation will also be updated. The RIPE NCC will work with DNSMON users to ensure a smooth transition and further development of the service.
How to Contact Us:
Please send your e-mails to firstname.lastname@example.org. We give priority to
mails from subscribers, but all e-mails will receive a reply.
We cannot subscribe new DNSMON users at the moment, but if you are a RIPE NCC member and would like to be placed on a waiting list for the service, please send an email to email@example.com. We will then contact you to discuss the service.