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Mobile Website Performance & Viewport Checker

Test mobile responsiveness, viewport configuration, touch target spacing, and mobile speed for Google Mobile-First Indexing.

Mobile Website Performance & Viewport Auditor

Simulate mobile device responsiveness, viewport rendering, and Core Web Vitals across touch screens.

💎 Unlock Premium Features

Support this free tool by visiting our sponsor to claim your exclusive high-roller bonus or access premium analytics.

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✨ Key Capabilities

Mobile-First Indexing readiness score (0-100)
Viewport meta tag validation
Touch target sizing and spacing inspection
Font readability and minimum 16px body scale check
Responsive layout audit across mobile viewports

📖 How to Use the Mobile Website Performance & Viewport Checker

Enter the webpage URL.
Click "Audit Mobile UX".
Review the Mobile-First score and responsiveness checklist.

❓ Frequently Asked Questions

What is Google Mobile-First Indexing?

Google predominantly uses the mobile version of a site's content for indexing and ranking, meaning poor mobile UX damages your desktop rankings.

What makes a website mobile-friendly?

A mobile-friendly site uses responsive CSS viewports, fast-loading compressed assets, legible font sizes (at least 16px), and finger-friendly tap targets.

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