General
- Extension
- .com.tw
- Type
- Second-level extension
- Meaning
- Second-level zone under .tw (Taiwan)
- Parent extension
- .tw
- Registry
- Taiwan Network Information Center (TWNIC)
- Registry website
- rs.twnic.net.tw
- Registered since
- 31 July 1989 (.tw)
Properties
- DNSSEC in the root zone
- .tw: yes
- Name servers
- .tw: 9 (7 with IPv6)
- WHOIS server
- whois.twnic.net.tw
- RDAP server
- ccrdap.twnic.tw/tw
- At 1blu
- available to order directly
Registration conditions
- Who may register?
- Only companies and partnerships registered under Taiwanese law and tax-registered freelancers, or companies registered under foreign law.
- Length
- 1 to 63 characters.
- Characters
- Letters, digits and hyphen, plus Chinese IDN. No hyphen at the beginning or end, no two consecutive hyphens.
- Allocation
- First come, first served.
- Term
- Renewal for one year at a time. Unpaid domains remain in place until 30 days after the end of the term.
Sources: TWNIC: Domain Name Registration Policies and Regulations · TWNIC: Registration Agreement and Guidelines · IANA Root Zone Database: .tw · As of 25 October 2026