One of the ways to check the size of the site before uploading it to the browser to use a special online service. Take, for example, http://main-ip.ru. Go to this website. Under "Popular services" click "to Measure the size of the site". On the form what URL to measure the size of the main page" you will need to enter the address you are interested in the site. Please note that the program will measure the size that is the main page of the site.
When creating pages of the site also need to measure their size. Webmasters appreciate the size before publish page of the site on the Internet. Thus, this service is useful to both users and creators of web pages.
If you want to determine the size of the entire site, you will have to determine the size of all of the pages. To do this, save each page by selecting to save the web page completely. Click on the folder with the saved data, right-click, select "Properties". Repeat the procedure for each page of the selected site. Summing up the results of the measurements, you will receive the weight of the entire site, i.e., determine its size.