.tw | |
Introduced: | 31 July 1989 |
Type: | Country code top-level domain |
Status: | Active |
Registry: | TWNIC |
Sponsor: | TWNIC |
Intendeduse: | Entities connected with Taiwan |
Actualuse: | Popular in Taiwan |
Restrictions: | Requirements vary depending on which second-level name registration is within; foreigners allowed in several categories |
Structure: | Registrations are at second level or at third level beneath some second-level labels |
Document: | Guidelines for administration of domain name registration |
Disputepolicy: | Taiwan Network Information Center Domain Name Dispute Resolution Policy |
Website: | TWNIC |
Dnssec: | yes |
.tw is the Internet country code top-level domain (ccTLD) for Taiwan. The domain name is based on the ISO 3166-1 alpha-2 country code TW. The registry is maintained by the (TWNIC), a Taiwanese non-profit organization appointed by the National Communications Commission (NCC) and the Ministry of Transportation and Communication. Since 1 March 2001, TWNIC has stopped allowing itself to sign up new domain names directly, instead allowing new registration through its contracted reseller registrars., there are 17 registrars.[1]
Registrations under are possible in second-level space or under various domains as third-level domains:
Domain names in Chinese characters may also be registered at the second level. Furthermore, any registrant of a standard domain name who has chosen a domestic registrar may automatically get two more domain names in Chinese characters in the following second-level domains: Chinese: 網路.tw, Chinese: 組織.tw and Chinese: 商業.tw. These second-level domains correspond to, and, respectively.
As of March 2017, around 8.31% of the .tw domains are served via secured HTTPS protocol, with the cPanel, Inc. Certification Authority being the most popular SSL certificate.[2] Apache is the most popular web server, serving 47.60% of the .tw domains, followed by Microsoft-IIS serving 20.31% of the total .tw domains.
ICANN assigned two Internationalized country code top-level domains (IDN ccTLDs) for Taiwan on 25 June 2010:[3]
Since at least November 2015,[4] the simplified suffix is a DNAME alias for the traditional suffix. As a result, any subdomain of the traditional xn--kpry57d TLD automatically has a CNAME alias from the simplified xn--kprw13d TLD. The traditional suffix is in active use.