Web Speed Analyzer

Measure server response latency and calculate projected load times across global network speeds. Optimize your site for every connection.

Website URL

Estimated Page Size (MB)

Ready to Scan

Click button to start.

Server Latency (TTFB)

Time to first byte

Total Weight

Assumed page size

Performance Score

Based on 4G speed

Load Time Estimates Calculated by physics

Connection Type	Avg Speed	Est. Load Time	Visual

Understanding Web Speed Performance

Web speed is a critical factor for user experience (UX) and Search Engine Optimization (SEO). Google's "Core Web Vitals" prioritize fast loading, visual stability, and interactivity. This tool helps you break down the physical constraints of your website by analyzing latency and file weight.

Key Metrics Analyzed

TTFB (Time to First Byte): The time it takes for the user's browser to connect to your server and receive the first packet of data. High TTFB usually means slow server processing or DNS issues.
Page Weight: The total size of all HTML, CSS, JavaScript, and Images on your page. A 5MB page will always load slowly on a 3G connection, regardless of how fast your server is.
Network Variability: Your site might load in 1 second on your office Wi-Fi, but how does it perform for a user on a 4G mobile signal in a rural area? This tool simulates those conditions.

Pro Tip: Aim for a total page size of under 2MB for optimal performance on mobile networks. Use image compression (WebP), lazy loading, and code minification to achieve this.

How to Improve Your Speed Score

1. Optimize Images: Images often account for 50-70% of a page's weight. Resize them to the exact display dimensions and use modern formats.

2. Use a CDN: A Content Delivery Network stores copies of your site on servers around the world, reducing the physical distance (and thus Latency/TTFB) between the user and your content.

3. Minify Code: Remove unnecessary spaces and comments from your CSS and JS files to reduce their file size and parsing time.