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.APP Domain Registration WHOIS Guidelines
Analyze registry operators, character limits, IDN support status, and specific registration guidelines for .APP domains.
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Overview Registration Guidelines
The .APP domain extension is .app is a gTLD operated by Google Registry since 2018. HTTPS is mandatory — all .app domains must serve content over TLS (enforced via HSTS preload list). Popular with mobile application developers and software companies. Minimum label: 1, Maximum: 63. IDN not supported. It requires a minimum label length of 1 characters and supports up to 63 characters. It does not support IDN characters, meaning only standard English characters are allowed. The following registration restrictions apply: All .app domains must use HTTPS (HSTS preloaded).
To search for who owns a specific domain registered under this extension, you can perform a live query in our WHOIS portal above. The registry operator database will respond in real time with server details, domain status codes, registration/expiry dates, and name server arrays.