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IAB gives dotless domains the thumbs down

Kevin Murphy, July 11, 2013, Domain Tech

The Internet Architecture Board believes dotless domain names would be “inherently harmful to Internet security.”
The IAB, the oversight committee which is to internet technical standards what ICANN is to domain names, weighed into the debate with an article apparently published yesterday.
In it, the committee states that over time dotless domains have evolved to be used only on local networks, rather than the internet, and that to start delegating them at the top level of the DNS would be dangerous:

most users entering single-label names want them to be resolved in a local context, and they do not expect a single name to refer to a TLD. The behavior is specified within a succession of standards track documents developed over several decades, and is now implemented by hundreds of millions of Internet hosts.
…
By attempting to change expected behavior, dotless domains introduce potential security vulnerabilities. These include causing traffic intended for local services to be directed onto the global Internet (and vice-versa), which can enable a number of attacks, including theft of credentials and cookies, cross-site scripting attacks, etc. As a result, the deployment of dotless domains has the potential to cause significant harm to the security of the Internet

The article also says (if I understand correctly) that it’s okay for browsers to interpret words entered into address bars without dots as local resources and/or search terms rather than domain names.
It’s pretty unequivocal that dotless domains would be Bad.
The article was written because there’s currently a lot of talk about new gTLD applicants — such as Google, Donuts and Uniregistry — asking ICANN to allow them to run their TLDs without dots.
There’s a ban in the Applicant Guidebook on the “apex A records” that would be required to make dotless TLDs work, but it’s been suggested that applicants could apply to have the ban lifted on a case by case basis.
More recently, ICANN’s Security and Stability Advisory Committee has stated almost as unequivocally as the IAB that dotless domains should not be allowed.
But for some reason ICANN recently commissioned a security company to look into the issue.
This seems to have made some people, such as the At Large Advisory Committee, worried that ICANN is looking for some wiggle room to give its new gTLD paymasters what they want.
Alternatively, ICANN may just be looking for a second opinion to wave in the faces of new gTLD registries when it tells them to take a hike. It was quite vague about its motives.
It’s not just a technical issue, of course. Dotless TLDs would shake up the web search market in a big way, and not necessarily for the better.
Donuts CEO Paul Stahura today published an article on CircleID that makes the case that it is the browser makers, specifically Microsoft, that are implementing DNS all wrong, and that they’re objecting to dotless domains for competitive reasons. The IAB apparently disagrees, but it’s an interesting counterpoint nevertheless.