Page Size Checker
Check the total size of your webpage
What is Page Size Checker Tool
Modern web protocols compress files while they are being transferred, so files that are downloaded are typically lower than their real or "raw" size. Any manual optimizations you make would therefore be made to the "raw" file. One of the main factors in page load speed, which has a direct impact on rankings, user experience, and conversions, is download page size.
How to fix it
Making sure your download file size is as short as it can be by deleting pointless files and optimising and minifying others is crucial. Though the average size of modern websites is steadily rising, 5MB is a good benchmark to aim towards.