Web Page Size Analyzer

Measure server responsiveness by calculating the time to first byte.

View all HTTP headers returned by a URL for debugging and security analysis.

Check if a website uses Brotli compression for better data transfer speeds than Gzip.

Calculate the total download size of a webpage, including all assets like images and scripts.

Analyze which images on a page use lazy loading to defer off-screen resources.

Identify deprecated HTML elements that should be replaced with modern CSS or semantic HTML5.

Retrieve ownership details, registration dates, and registrar info for any domain.