Registrations in Open ccTLDs

Registrations in Open ccTLDs. (June – July 2002)

The author analyzes domain registrations and usage in the “open ccTLDs” of .CC, .TV, and .WS in order to quantify the domains’ size, usage, and registration patterns. Analysis first reports the number of open ccTLD web pages indexed by Google, finding open ccTLDs to be less than one one-hundredth as large as .COM when measured in this way. The author next considers registration of commonly-used dictionary nouns; while many such domains have been registered in the tested ccTLDs, more than 80% lead only to placeholders or to no web content at all. Finally, the author investigates open ccTLD registrations that use the same second-level strings as the primary .COM domains of major corporations worldwide (including the Fortune 1000 and Forbes International 500). Again, many such domains have been registered, and more than two thirds of such registrations are by registrants other than the registrant of the corresponding .COM. The web content available on sampled domains provides evidence both of substantial defensive registrations and of substantial cybersquatting.

DNS as a Search Engine: A Quantitative Evaluation

DNS as a Search Engine: A Quantitative Evaluation. (June – July 2002)

In the course of the Internet’s growing popularity, many Internet users have come to use the domain name system (DNS) as a directory and search engine: When trying to reach the web site of a new or unknown company, users often request the web page at the address http://www.companyname.com, replacing “companyname” with a guess as to a site’s likely domain name. However, this DNS-based method is imperfect in that users may fail to correctly guess or remember a given company’s domain name, instead typically receiving errors or sites operated by other entities.

The research described in this article suggests that alternative search mechanisms, such as leading search engine Google, provide the content of interest with greater accuracy and reliability than does the DNS. This finding supports the claim offered by, among others, DNS software designer Paul Vixie, that DNS “is not a directory service and was never intended to be used as one.” This finding also quantifies Dan Gillmor‘s “Google effect” whereby Google replaces DNS as the preferred mechanism of locating content online.

Research further suggests that, while DNS offers what some might consider relatively high accuracy when conducting searches for top brands, companies, and organizations, DNS is substantially less accurate in searches for smaller brands, companies, and organizations.

 

Survey of Usage of the .BIZ TLD

Survey of Usage of the .BIZ TLD. (June 2002) With Jonathan Zittrain.

The authors examined a variety of data about registrations in .BIZ. Analysis suggests that at least 74% of currently registered .BIZ domains provide no web content or provide only error messages or placeholders. Using WHOIS data, we conclude that approximately 25% of .BIZ registrations are registered to the same organization that registered the corresponding .COM, and that such domains are about one-third less likely to provide substantive web content than domains registered by someone without a corresponding .COM registration. We document 4886 distinct .BIZ domains seemingly inconsistent with .BIZ registry anti-warehousing policies, suggesting that such policies are not being effectively enforced. Finally, we compare .BIZ registrar market shares with corresponding shares in .COM, .NET, and .ORG, and we summarize notable differences in registrar market share across TLDs.

 

.NAME Registrations Not Conforming to .NAME Registration Restrictions

.NAME Registrations Not Conforming to .NAME Registration Restrictions. (May 2002)

In 2000-2002, the ICANN New TLD Program coordinated the introduction of seven new top-level domains to the Internet’s Domain Name System. Among these new TLDs was .NAME, a namespace intended, according to an appendix to its agreements with ICANN, to be used for “personal name registrations” of the form JOHN.DOE.NAME. However, a large number of .NAME domains do not follow the format specified in ICANN’s agreement with the .NAME registry. Rather than matching the first and last names of their registrants, or matching their registrants’ commonly-used nicknames or pseudonyms, these many domains instead seem to have commercial, humorous, or other intentions inconsistent with the .NAME charter and the .NAME registration agreements that bind all .NAME registrants; to follow naming conventions other than those required by the .NAME registry; or to reflect defensive registrations performed outside .NAME’s official Defensive Registration system.

In this research, I document several thousand domains reregistered within .NAME that seem to be inconsistent with the .NAME registration restrictions as embodied in an appendix to .NAME’s agreement with ICANN, and as embodied in the eligibility requirements posted by the .NAME registry and accepted by all registrants. A review of these specific registrations as well as their general characteristics may be helpful in understanding the behavior at issue and in evaluating enforcement of registration restrictions in this and other TLDs.

 

Domains Reregistered for Distribution of Unrelated Content: A Case Study of “Tina’s Free Live Webcam”

Domains Reregistered for Distribution of Unrelated Content: A Case Study of “Tina’s Free Live Webcam”. (March – April 2002.)

In recent years, many Internet users have become aware that when domain names expire (after their original registrants forget, fail, or otherwise decline to renew them), the domain names may be reregistered by others. This feature of the management of the domain name system might be thought to be desirable since it allows and facilitates a turnover of names from those uninterested in using them to those who in fact do seek to put them to active use. But recent experience shows that this structure also allows domains to be renewed by firms who do not seem to seek to use the domains to offer original content but rather seem to hope to profit from the prior promotional works of others.

In particular, such firms often offer pornographic or sexually-explicit images, advertising, or links or redirects to other commercial sites. The apparent expectation of such firms is that at least some users will request the web pages previously (before domain expiration) hosting other content; any such users will instead be shown this new content, likely creating profits for the firms that reregistered the expired domain names.

In this article, I document several thousand domains reregistered by one particular firm — many domain names that all redirect users to one particular web page displaying sexually explicit images. While this research is by no means exhaustive — other firms are likely conducting similar registration practices, and still others make numerous registrations and reregistrations that no doubt differ in various ways — a review of these specific registrations as well as their general characteristics may be helpful in understanding the behavior at issue.