Free Website Speed Checker
Core Web Vitals & Page Speed
Website speed checker — test your site’s loading speed, Core Web Vitals score, mobile performance, and lazy loading. According to Google’s Core Web Vitals documentation, these metrics directly affect your search rankings. Get instant results with actionable fixes.
Website Speed Checker
Instantly test any website’s loading speed, server response time, and performance score with our free website speed checker.
Test any URL’s load time, server response speed, total page size, and number of requests. Get a quick performance score with a breakdown of what’s slowing your site down.
Website Speed Checker
Checks response time, HTTPS, and optional PageSpeed (if API key is set). Export to CSV or PDF.
Core Web Vitals Checker
Check Google’s official ranking signals — LCP, FID, and CLS — for any URL in seconds.
Core Web Vitals are Google’s official page experience ranking signals. This tool measures Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS) — and tells you if you pass or fail Google’s thresholds.
Lazy Load Images Checker
Check if your website properly implements lazy loading for images and videos to boost page speed.
Verify whether images on your page use lazy loading attributes (loading=”lazy”). Missing lazy load can significantly increase initial page weight and hurt your LCP and overall PageSpeed score.
💤 Lazy Load Images
Mobile Optimization Checker
Test how well your website performs on mobile — a critical factor in Google’s mobile-first indexing.
Google uses mobile-first indexing — your mobile experience directly affects rankings. Check viewport configuration, tap target sizes, font sizes, mobile speed, and usability issues that could hurt your mobile SEO performance.
📱 Mobile Optimization
Image SEO Optimization Checker
Check image file sizes, alt tags, formats, and compression to ensure images don’t slow your site down.
Oversized images are one of the biggest causes of slow websites. This tool checks all images for missing alt tags, unoptimized file sizes, wrong formats (use WebP!), and missing dimensions that cause layout shift.
🖼️ Image SEO Optimization
What Does Your Speed Score Mean?
Google PageSpeed scores range from 0 to 100. Here’s what each range means for your SEO. According to Google’s PageSpeed Insights documentation, a score of 90+ is required for optimal ranking performance.
Test Your Page Speed in 3 Steps
No account. No API key. Results from our free website speed checker in seconds.
Enter Your URL
Paste any webpage URL into the speed checker tool above.
Run the Test
Click Analyze — speed score and Core Web Vitals appear instantly.
Fix & Re-Test
Apply the recommendations, then re-run the test to track improvement.
Top Ways to Speed Up Your Website
Apply these fixes to improve your website speed checker score and boost Google rankings.
Convert Images to WebP
WebP images are 25–35% smaller than JPEG/PNG with the same quality. Use WebP for all images.
Enable Lazy Loading
Add loading=”lazy” to all below-the-fold images. This reduces initial page weight significantly.
Enable GZIP Compression
Compress HTML, CSS, and JS files on the server. Reduces transfer size by up to 70%.
Use Browser Caching
Set long cache expiry for static files so returning visitors load pages instantly.
Use a CDN
A Content Delivery Network serves assets from servers closest to your visitors, reducing latency.
Remove Render-Blocking Resources
Defer non-critical JavaScript and inline critical CSS to prevent blocking the initial page render.
Continue Your SEO Analysis
Speed is just one part of SEO. Use these tools for a complete audit.