.app Domain Guide
The secure domain for applications
Overview
.app is Google's TLD designed specifically for app developers and software products. It's the first TLD to require HTTPS by default, making it one of the most secure domain extensions available.
Built-in Security
.app is on the HSTS preload list, meaning all .app domains require HTTPS connections. Browsers will refuse to connect to a .app site over plain HTTP. This built-in security makes .app particularly suitable for applications handling user data, payments, or sensitive information.
Google's Backing
Google Registry operates .app, giving it strong infrastructure backing and long-term stability. While Google's ownership doesn't provide SEO advantages, it ensures reliable DNS, robust abuse prevention, and continuous investment in the TLD's reputation.
Ideal for Software Products
.app works perfectly for mobile apps that need a web presence, progressive web apps (PWAs), SaaS dashboards, and any software product. The extension immediately tells visitors what to expect — a functional application, not just a content website.
Advantages
- HTTPS required (built-in security)
- Clear application association
- Google-backed registry
- Good name availability
- Affordable pricing
Disadvantages
- Must configure SSL (no plain HTTP)
- Less recognized than .com or .io
- Google registry — single company dependency
Frequently Asked Questions
Why does .app require HTTPS?
.app is included in the HSTS preload list, which means browsers enforce HTTPS for all .app domains. This was a deliberate security decision by Google Registry to make the entire TLD more secure by default.
Is .app good for mobile app landing pages?
Yes, .app is ideal for mobile app landing pages. The extension immediately signals to visitors that they're visiting a software product's website, and the required HTTPS ensures a secure experience.
Best For
- Mobile apps
- Web applications
- SaaS products
- PWAs
- Software companies
Quick Details
- Registry
- Google Registry
- Year Introduced
- 2018
- Security
- HTTPS Required
- Est. Registrations
- 1M+
- Category
- Tech