- Category
- Country code
- IANA type
- Country Code
- Country
- Taiwan
- Manager
- Taiwan Network Information Center (TWNIC)
- Script
- Latin
- DS in root
- 1 record(s)
- Algorithm
- 13 · ECDSA P-256
- Second-level
- 10 suffixes
- IDN names
- yes, 7 scripts/languages
- WHOIS
- whois.twnic.net.tw
- RDAP
- yes
Checked 26 Oct 2026 by our weekly check.
Is a .tw name registered?
Looked up from your browser in the registry's RDAP service; if that does not answer, in DNS. Nothing is stored on dnssec.in.What this means
The root zone holds a DS record for .tw, so the extension is signed and anchored. A domain under .tw can use DNSSEC with a full chain of trust: it needs to be signed at its DNS host and have its own DS at the registrar. .tw is the country code for Taiwan; its registry sets who can register.
Second-level suffixes under .tw (10)
You can register names directly under .tw or under these suffixes, for example example.com.tw. Some are restricted to certain users (government, education, banks). Source: the Public Suffix List.
- .club.tw
- .com.tw
- .ebiz.tw
- .edu.tw
- .game.tw
- .gov.tw
- .idv.tw
- .mil.tw
- .net.tw
- .org.tw
IDN names under .tw
The registry publishes IDN tables at IANA for 7 scripts or languages, so names can use these characters (stored as xn-- in the DNS):
- Chinese (Traditional) Language
- Chinese Language
- French Language
- German Language
- Japanese Language
- Korean Language
- Thai Language
Length
DNS limits are the same everywhere: each label is 1 to 63 characters, the whole name at most 253, letters, digits and hyphens, not starting or ending with a hyphen. IDN labels count their xn-- form, so fewer native characters fit. A registry can set a higher minimum (often 2 or 3 characters) or reserve short names: that is in its own policy.
WHOIS and RDAP
RDAP (the JSON successor to WHOIS) answers at https://ccrdap.twnic.tw/tw/. Classic WHOIS (port 43) answers at whois.twnic.net.tw.
Lifecycle and drop
Country code extensions set their own lifecycle: grace periods, redemption and release dates differ from country to country and are not covered by ICANN's gTLD policies. Read the registry's rules: http://rs.twnic.net.tw.