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| Introduced | 1999 |
|---|---|
| TLD type | Reserved top-level domain |
| Status | Reserved to prevent conflict and confusion |
| Intended use | In documentation or for internal testing |
| Structure | Those using it for testing can use it in any desired structure |
| Documents | RFC 2606 |
.test is a reserved top-level domain used to test websites or web applications as an alternative to testing webpages using the default localhost. It is guaranteed to never be registered into the Internet.[1][2]
Along with .test, there are 11 other reserved test domains: .测试, .परीक्षा, .испытание, .테스트, .טעסט, .測試, .آزمایشی, .பரிட்சை, .δοκιμή, .إختبار, and .テスト.[3]
- ^ Leiba, Barry (2009). "The Good and the Bad of Top-Level Domains". IEEE Internet Computing. 13 (1). IEEE: 69. doi:10.1109/MIC.2009.23. ISSN 1941-0131. S2CID 260466.
As a way to avoid this problem, the IETF published Best Current Practice (BCP) 32 in 1999. BCP 32, also known as RFC 2606, defines four reserved TLDs — .test, .example, .invalid, and .localhost ... that are guaranteed never to be assigned so that researchers and developers can always use them for example and testing purposes without concern.
- ^ D. Eastlake; A. Panitz (June 1999). Reserved Top Level DNS Names. Network Working Group. doi:10.17487/RFC2606. BCP 32. RFC 2606. Best Common Practice. Updated by RFC 6761.
- ^ "IANA — Root Zone Database". www.iana.org. Retrieved 2022-05-07.