.com
From Wikipedia, the free encyclopedia
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| Introduced | 1985 |
|---|---|
| TLD type | Generic top-level domain |
| Status | Active |
| Registry | VeriSign |
| Sponsoring organization | None |
| Intended use | Commercial entities (worldwide) |
| Actual use | Used for all sorts of sites, commercial or not |
| Registration restrictions | None |
| Structure | Registrations at second level permitted |
| Documents | RFC 920; RFC 1591; ICANN registry agreement |
| Dispute policies | UDRP |
| Web site | VeriSign COM NET Registry |
.com (commercial) is a generic top-level domain (gTLD) used on the Internet's Domain Name System. It was one of the original top-level domains (TLDs), established in January 1985, and has grown to be the largest TLD in use. It is currently operated by VeriSign. In the English language it is consistently pronounced as a word, dot-com, and has entered common parlance this way.
Although .com domains are officially intended to designate commercial entities (others such as government agencies or educational institutions have different top-level domains assigned to them), there has been no restriction on who can register .com domains since the mid-1990s. The opening of the .com registry to the public coincided with the commercialization and popularization of the Internet, and .com quickly became the most common top-level domain for websites. Many companies which flourished in the period between 1997-2001 (the time known as the "dot-com bubble") went so far as to incorporate .com into the company name; these became known as dot-coms or dot-com companies. The introduction of .biz in 2001, which is restricted to businesses, has had little impact on the popularity of .com.
Although companies anywhere in the world can register .com domains, many countries have a second-level domain with a similar purpose under their own ccTLD. Such second-level domains are usually of the form .com.xx or .co.xx, where xx is the ccTLD. Argentina (.com.ar), Japan (.co.jp), New Zealand (.co.nz), India (.com.in), the People's Republic of China (.com.cn), Pakistan (.com.pk), and the United Kingdom (.co.uk) are all examples.
Many noncommercial sites, such as those of nonprofit organizations or governments, use .com addresses. Some consider this to be contrary to the domain's original purpose and might say that a .org, .gov, or other more specific TLD might be more appropriate for such sites. However, many organizations prefer the recognizability of a .com domain to a less familiar one. As well, the original purposes of many of the top level domains have become irrelevant without restrictions on registrations.
Registrations are processed via registrars accredited by ICANN; internationalized domain names are also accepted.
[edit] Transfer Procedures
Domains can be transferred between registrars. Prior to October 2006 the procedure used by Verisign was complex and unreliable - requiring a notary public to verify the identity of the registrant requesting a domain transfer. In October 2006, a new procedure, requiring the losing registrar to provide an authorization code on instruction from the registrant (also known as EPP code) was introduced by Verisign to reduce the incidence of domain hijacking.
[edit] List of oldest .com domains
The following are the 100 oldest still-existing registered .com domains [1]:
[edit] External links
| Generic top-level domains | ||
|---|---|---|
| Unsponsored | .biz .com .edu .gov .info .int .mil .name .net .org | |
| Sponsored | .aero .cat .coop .jobs .mobi .museum .pro .travel | |
| Infrastructure | .arpa .root | |
| Startup phase | .asia .tel | |
| Proposed | .berlin .bzh .cym .gal .geo .kid .kids .mail .nyc .post .sco .web .xxx | |
| Deleted/retired | .nato | |
| Reserved | .example .invalid .localhost .test | |
| Pseudo-domains | .bitnet .csnet .local .onion .uucp | |
| Unofficial | see Alternative DNS roots | |
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See also: Country code top-level domains |
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