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Registry: Charleston Road Registry (Google Registry) Year 1: Promo w/ THANKFULDOT (~$14.98) HSTS HTTPS Mandatory

.APP Domain Guide: Mobile & Web App Branding + Mandatory HTTPS Rules

Like .DEV, Google Registry’s .APP extension is HSTS-preloaded across all modern browsers—requiring valid SSL/TLS from minute one. This built-in encryption makes .APP ideal for Apple Universal Links (apple-app-site-association) and Android App Links.

Live .APP Domain Availability Checker

Type any brand or keyword to check exact .app and smart prefix/suffix variations live via Cloudflare 1.1.1.1 DNS:

    Developer Security Requirement

    Mandatory HSTS Preload: Every .APP URL Requires Valid SSL/TLS

    Chrome, Safari, Edge, and Firefox hardcode .app into their HSTS preload list. Plain http:// will never resolve—deploy on Vercel, Cloudflare Pages, GitHub Pages, or Let’s Encrypt from Day 1.

    5-Min SSL DNS Guide →

    .APP Pricing, Registry Rules & 3-Year Ownership Cost

    .APP Technical & Financial Specification (November 2026)
    Specification .APP on Namecheap
    Registry Operator Charleston Road Registry (Google Registry)
    Year 1 Promo Price Promo w/ THANKFULDOT (~$14.98) (Code: THANKFULDOT)
    Standard Annual Renewal ~$18.98/yr
    3-Year Total Cost (Namecheap vs GoDaddy) ~$52.94 vs GoDaddy ~$71.97+
    WHOIS Privacy Protection Free Forever ($0/yr)
    Google Search Geo-Treatment Global gTLD
    HSTS Browser Preload Yes — HTTPS strictly enforced

    SEO & Email Deliverability Verdict for .APP

    Clean consumer recognition ("Cash.app", "Linear.app") and full global search parity.

    Ideal Use Cases

    iOS & Android apps (Universal Links / App Links), PWAs, Mac utilities, and consumer SaaS.

    When to Pick Another Extension

    Your backend host does not support automated SSL certificates.

    Ready to Lock In Your .APP Domain?

    Apply verified code THANKFULDOT in your Namecheap cart.

    Claim .APP Promo (Promo w/ THANKFULDOT (~$14.98)) →

    Frequently Asked Questions About .APP

    Do I need an actual App Store app to buy a .APP domain?

    No! Anyone can register a .APP domain for web applications, SaaS tools, or upcoming product waitlists—the only technical requirement is serving HTTPS.

    Brainstorm Available .APP Names With Our Niche Generators

    Interactive naming tools tailored to .APP buyers.

    All 16 Generators →
    Startup & Brandable B2B & SaaS Favorite

    Two-Word Startup Generator

    Combine your core keyword with high-trust startup modifiers (Pulse, Pilot, Stack, Forge, Swift, Clear) and check live .COM availability in under a second.

    Launch Live Generator →
    Startup & Brandable Indie Hacker & Vibe-Coder Tool

    SaaS & AI App Generator

    Shipping an AI wrapper, micro-SaaS, or agentic app? Generate proven founder domain patterns (useApp.com, tryApp.com, AppLabs.io) and check live DNS availability.

    Launch Live Generator →
    Personal & Creator Carrd, Stan Store & Canva Ready

    Creator & Link-in-Bio Generator

    Upgrade ugly link-in-bio URLs to your own custom creator domain (itsMaya.com, Maya.me, Maya.store) with real-time DNS availability verification.

    Launch Live Generator →

    DNS, SSL & Custom Email Setup Blueprints for .APP

    All 15 Guides →

    Compare Other Domain Extensions:

    .COM ($5.98) → .XYZ ($2.00) → .IO (12% OFF (~$34.98)) → .AI (~$79.98/yr (2-Yr Min = ~$159.96)) → .DEV (Promo w/ THANKFULDOT (~$12.98)) → .STORE ($0.98 (96% OFF)) →