1. You do not require to provide support documents when registering Domain Name under .com, .net, .org, .etc. We only need your name, contact details such as address, telephone number and email address to register.

2. When registering Domain Name under .th, documents require are:

2.1 Documents for .co.th

• Company Limited / Limited Partnership's Registration Document (Thor-Khor-0401) or
• Company Limited / Limited Partnership's Certification Paper or
• VAT Registration Document (Por-Por-20) or
• VAT Modification Request Paper (Por-Por-09) or
• Overseas Commercial Permission Document (Thor-Khor-0506) (In case the registrant is a foreign company which has local representative office in Thailand) or
• In case of registering ".co.th" as trademark, the registrant must provide a certification of trademark registration issued by the Department of Intellectual Property (Thailand).

2.2 Documents for .net.th

• Three categories of the licenses for operating telecommunication business assigned in Telecommunication Business Act B.E. 2544 (2001)
  

2.3 Documents for .in.th

• 2.3.1 Register on behalf of organization
• Company Limited / Limited Partnership's Registration Document (Thor-Khor-0401) or
• VAT Registration Document (Por-Por-20) or
• Other documents which are issued by Thai Government) and payment evidence (or pay-in slip)
• 2.3.2 Register on behalf of individual
• Administrative contact's ID card or
• Driving license or
• Thailand work permit license and payment evidence (or pay-in slip)

2.4 Documents for .or.th

• A paper which contains committee, permanent address in Thailand and purposes of the registrant and
• A paper to approve establishment of the registrant in Thailand by a well-known organization

2.5 Documents for .go.th

• A letter which informs intention to register a domain name, including domain naming, to the CIO of upper level unit (ministry or department level) is required for each registration request

2.6 Documents for .ac.th

• An authorized paper of college/school establishment with authorized signature and its crest

Top Level Domain such as .com, .net are a group of generic Domain Names which have been categorized to increase the convenience of memorability when use. As a result, you are recommended to register Domain Name which matches with its purposes:

• .com for commercial organization
  
• .biz for business of all size (extension of .com)
  
• .net for network organization (ISP or organisation which has its own network)
  
• .info for general information provider
  
• .org for nonprofit organization
  
• .gov for goverment agevcies
  
• .mil for militaly organization
  
• .edu for educational institution
  

The following are Domain Names that use in Thailand:

• .co.th for commercial entities which have been registered in Thailand
  
• .ac.th for academic institutions which located in Thailand
  
• .go.th for Thailand government agencies
  
• .or.th for nonprofit organization in Thailand
  
• .in.th for all individuals or organisations in Thailand
  

Registrar is a company accredited by ICANN (Internet Corporation for Assigned Names and Numbers) to help registering and assigning Domain Names internationally. These days, there are many accredited Registrars around the world and Nine Web opted the best Registrars which have a very high reputation and experience. Two Registrars we chose are Tucows (Open SRS) and DirectI (Direct Information). Both of them has its own management system which is very friendly to the registrant users. Domain Names can be registered in such a short period of time and the process of registration is very efficient and reliable. The differences between these two Registrars are that Tucows is a Registrar from Canada who has been accredited by ICANN for a very long time ago since the emerging era of the internet. On the other hand, DirectI is a Registrar from India which has been accredited later but has such a high reputation speading all over the world. With its easy management control panel, the service process is very fast and the cost is lower. You can choose to register your Domain Name with either Registrars. It depends on your self-satisfaction rather than the quality because they are up there at the same level.