RIPE NCC DNS Monitoring Services

About DNSMON

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. We still offer the service to everybody, but people who pay get earlier access to the data and priority when answering their mails.

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 time frames.

How to Contact Us:

Please send your e-mails to dnsmon@ripe.net. We give priority to mails from subscribers, but all e-mails will receive a reply.

If you want to become a subscriber to our DNS Monitoring Service, please send an e-mail to dnsmon-sales@ripe.net, we will contact you to discuss the service.