Gartner Blog Network


by Lydia Leong  |  June 24, 2009  |  1 Comment

ICANN has been on the soapbox on the topic of DNS recently, encouraging DNSSEC adoption, and taking a stand against top-level domain (TLD) redirection of DNS inquiries.

The DNS error resolution market — usually manifesting itself as the display of an advertising-festooned Web page when a user tries to browse to a non-existent domain — has been growing over the years, primarily thanks to ISPs who have foisted it upon their users. The feature is supported in commercial DNS software and services that target the network service provider market; in most current deployments of this sort, business customers typically have an opt-out option, and consumers might as well.

While ICANN’s Security and Stability Advisory Committee (SSAC) believes this is detrimental to the DNS, their big concern is what happens when this is done at the TLD level. We all got a taste of that with VeriSign’s SiteFinder back in 2003, which affected the .com and .net TLDs. Since then, though, similar redirections have found their way into smaller TLDs (i.e., ones where there’s no global outcry against the practice). SSAC wants this practice explicitly forbidden at the TLD level.

I personally feel that the DNS error resolution market, at whatever level of the DNS food chain, is harmful to the DNS and to the Internet as a whole. The Internet Architecture Board’s evaluation is a worthy indictment, although it’s missing one significant use case — the VPN issues that redirection can cause. Nevertheless, I also recognize that until there are explicit standards forbidding this kind of use, it will continue to be commercially attractive and thus commonplace; indeed, I continue to assist commercial DNS companies, and service providers, who are trying to facilitate and gain revenue related to this market. (Part of the analyst ethic is much like a lawyer’s; it requires being able to put aside one’s personal feelings about a matter in order to assist a client to the best of one’s ability.)

I applaud ICANN taking a stand against redirection at the TLD level; it’s a start.

Category: infrastructure  

Tags: networking  

Lydia Leong
Research VP
11 years at Gartner
19 years IT industry

Lydia Leong is a research vice president in the Technology and Service Providers group at Gartner. Her primary research focus is cloud computing, together with Internet infrastructure services, such as Web hosting, content delivery networks…Read Full Bio

Thoughts on ICANN and DNS

  1. […] its widely vilified Sitefinder service, so I forwarded the above to Lydia and she has blogged here reiterating the problems that TLD DNS redirection causes. In general, Lydia and I are in agreement […]

Comments are closed

Comments or opinions expressed on this blog are those of the individual contributors only, and do not necessarily represent the views of Gartner, Inc. or its management. Readers may copy and redistribute blog postings on other blogs, or otherwise for private, non-commercial or journalistic purposes, with attribution to Gartner. This content may not be used for any other purposes in any other formats or media. The content on this blog is provided on an "as-is" basis. Gartner shall not be liable for any damages whatsoever arising out of the content or use of this blog.