Page Size Checker

Page load speed is a confirmed Google ranking factor, and large page file sizes are one of the most common causes of slow load times. A heavy page forces users to wait longer, increases bounce rates, and can actively suppress your search rankings — particularly on mobile devices where connections may be slower. The Page Size Checker measures the total file size of any URL and returns the result in kilobytes or megabytes, giving you a clear benchmark for optimisation.

How It Works

Enter the URL of the page you want to measure and click Check. The tool requests the page and calculates the total size of all resources delivered — including HTML, CSS, JavaScript, and image assets — then displays the combined file size. Use this number to benchmark your page against recommended size guidelines and identify targets for optimisation.

Key Features

• Total page size measurement including all page resources
• Result displayed in both kilobytes and megabytes for easy reading
• Works on any publicly accessible URL
• Instant results with no account or registration required
• Free and suitable for ongoing performance monitoring

Benefits for Users

• Identify heavy pages that may be causing slow load times and high bounce rates
• Benchmark your page weight before and after optimisation to measure improvement
• Compare page sizes across competing websites in your niche
• Support Core Web Vitals improvement work with concrete file size data
• Set measurable page size reduction targets for development teams

Use Cases

• Measuring a homepage's file size before a performance optimisation sprint
• Comparing page weights across key competitor websites in a niche
• Benchmarking page size improvements after image compression or script removal
• Identifying the heaviest pages on a site to prioritise for speed optimisation
• Checking mobile page weight as part of a Core Web Vitals improvement project

Related Tools

Related: HTTP Status Code Checker · Server Status Checker · What Is My Browser