.app domain availability checker
Type a name to see whether its .app is registered, read live from Google Registry's RDAP server. If it is taken, the same name is checked in 17 other extensions below it. A free .app costs from $8.75 the first year and $14.93 to renew, and it only works over HTTPS. 37% of the .app names people checked here were already registered, half the .com rate.
Free, no sign-in. Free names show the price and a Register button; checkout confirms the name with the registrar again before you pay. Every extension at once: domain availability checker; mixed extensions in one list: bulk domain checker.
Six .app checks, 4 November 2026
Three names we know are registered and three random strings, sent through this checker on the live site. 3 of 3 known names answered taken and 3 of 3 random strings free.
| Domain | What it is | Answer | Time |
|---|---|---|---|
| cash.app | Known site | taken | 1,584 ms |
| bsky.app | Known site | taken | 1,809 ms |
| linear.app | Known site | taken | 1,490 ms |
| yfxawjiiluz.app | Random string | free | 2,340 ms |
| w96gfsxbyhr.app | Random string | free | 1,531 ms |
| yuvd0cjn489.app | Random string | free | 1,609 ms |
Time is from sending the check to the answer arriving, all six in one run. A taken answer can come from our record of names found registered in the past 7 days, which is why some known names answer fastest; a free answer is always asked of the registry.
.app at a glance
- Registry
- Charleston Road Registry Inc.; technical operator Google Inc
- This checker asks
- Google Registry's RDAP server (pubapi.registry.google); .app has no WHOIS server, so an RDAP lookup that fails goes to the DNS
- In the root zone since
- 2 July 2015
- DNSSEC
- Signed
- First year
- $8.75 at Porkbun
- Renews at
- $14.93 at Porkbun
- Five years
- $68.47 at Porkbun
- Taken on domhaul
- 37% of 399 names checked since 4 August 2026
- Who can register
- Anyone
- Name length
- Up to 63 characters: letters, digits and hyphens. Short and dictionary names can carry a premium price.
- Minimum term
- 1 year minimum
- HTTPS
- HSTS preloaded: browsers load .app sites only over HTTPS
Registry: IANA root zone database. Prices: the lowest standard (non-premium) quote, USD, as of 24 October 2026. Taken: the share of distinct names people checked on domhaul that were already registered. Transfer prices and every registrar quote are on the .app price page.
.app availability questions
Why won't my .app site load over http?
.app is on the HSTS preload list built into Chrome, Firefox, Safari and Edge, so browsers refuse to open any .app site over plain HTTP. Point the name at a host that serves HTTPS before you share the link; most hosts issue the certificate for free (Let's Encrypt). Email and other non-web uses are not affected.
Is .app only for mobile apps?
No. Anyone can register one for any kind of site. cash.app, bsky.app and linear.app, all taken on 4 November 2026, are a payments app, a social network and a work tool, each with a full website on the name rather than an app store page.
What does a .app cost over five years?
$68.47 at Porkbun: $8.75 the first year, then $14.93 a year (24 October 2026). Dynadot does not quote .app, so Porkbun is the only standard price here. The renewal is 1.7 times the first year, so judge it on $14.93.
Is a name more likely to be free in .app than in .com?
Much more. 37% of the .app names people checked on domhaul since 4 August 2026 were registered (148 of 399), against 75% in .com, so a name is about 2.5 times as likely to be free in .app. The rows under the .app answer show the .com for the same name in one check.
Check another extension
.com .ai .io .co .dev .net .org .xyz .gg. Taken everywhere? The AI domain name generator suggests names and checks each one live. Look up a taken name's registrar with the WHOIS lookup, when it runs out with the domain expiration checker, or what it is worth in the domain value calculator.