Mobile Speed Test
Test website speed on mobile devices. Simulate different network conditions and devices to optimize mobile user experience. Get mobile-specific Core Web Vitals and actionable recommendations.
Test Configuration
Mobile Device Testing
Test on various mobile devices including iPhone, Android, and tablets with realistic mobile hardware simulation.
Network Simulation
Simulate different network speeds (3G, 4G, 5G, WiFi) to test performance on real-world mobile conditions.
Mobile Optimization
Get mobile-specific recommendations for faster loading, better Core Web Vitals, and improved user experience on phones and tablets.
Frequently Asked Questions
Why is mobile speed important?
Over 50% of web traffic comes from mobile devices. Slow mobile sites have significantly higher bounce rates. Google uses mobile-first indexing, meaning your mobile site performance directly affects SEO rankings. Poor mobile speed also kills conversions - studies show that a 1-second delay can reduce conversions by 7%.
How different is mobile performance from desktop?
Mobile performance is typically 3-5x slower than desktop due to network latency, CPU constraints, and memory limitations. The same website that loads quickly on desktop can feel painfully slow on mobile. This is why testing both separately is essential for optimal user experience.
What network speed should I simulate?
Test on 4G (most common globally), but also test slower 3G networks especially if you have international users. In developing countries and rural areas, speeds are often even slower. Supporting lower speeds ensures broader reach and better user experience for all visitors.
How do I improve mobile speed?
Key strategies include: optimize and compress images for mobile screens, use responsive design with mobile-first approach, implement lazy loading for below-fold content, minimize CSS and JavaScript, enable compression (gzip/brotli), use service workers for caching, reduce third-party scripts, and use a CDN for faster global delivery.
Is my site mobile-friendly?
Mobile-friendly means proper viewport configuration, touch-friendly tap targets (minimum 48x48 pixels), readable text without zooming, no horizontal scrolling, and fast loading times. This tool checks technical mobile speed and provides Core Web Vitals - use it alongside responsive design testing for complete mobile optimization.
Does the device type matter for testing?
Yes, device capabilities vary significantly. Older devices like iPhone SE have slower CPUs and less memory. Most users have mid-range devices, not flagship phones. Testing on representative mid-range devices reveals real performance bottlenecks that high-end devices might hide. Always test on the devices your users actually use.
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