The size of a site affects how browsers load it. The larger the site, the slower it loads, the more space it takes up in your PC's memory. Often a large site not only slows down its loading speed, but also slows down the performance of the PC operating system. How do I determine the size of a site?
One way to check the size of a website before loading it into your browser is to use a dedicated online service. Take for example https://main-ip.ru. Go to this site. In the Popular Services section, select Measure Site Size. In the form "by which URL to measure the size of the main page" you will need to enter the address of the site you are interested in. Please note that the program will measure the size of the main page of the site
When creating site pages, you also need to measure their size. Webmasters estimate the size before publishing website pages on the Internet. Thus, this service is useful for both users and web page creators.
If you want to determine the size of the entire site, you will have to determine the size of all its pages. To do this, save each page by choosing “save entire web page”. Click on the folder with the saved data with the right mouse button, select "Properties". Repeat the procedure for each page of the selected site. Summing up the results of measurements, you get the weight of the entire site, that is, determine its size.