Well, was curious so I made the test.
I cleared all my cache, so full load on first page each time
First load is heavy (around 700ko-1Mo), because all JS and other stuff (i’m not taking images / emojies into accout). You won’t redownload these, thanks browser cache.
If you scroll down, you’ll see in the network load of your browser json pages, containing the posts you’ll load: ~2-10ko each time.
Result:
- loading the first 200 posts used 2Mo (because of cache was empty and some images)
- loading new answers will do in less than 10ko
- closing and opening again and loading the same 200 posts (without clearing cache): ~122ko
Now compared to the current forum, with a thread like this : https://forums.eveonline.com/default.aspx?g=posts&t=369477
- first page ~700ko (cache was clean before)
- every page, once cache is used is around 50-150ko, depending on the content
So yes, heavier load the first page, but after it’ll use less data here with longer use.