My page is 1.4MB in size (Calculated by GTMetrix).

When I checked with developer tools, I can also confirm that in "transferred" indicator in Network tab. (image below)

However I don't understand what is "resources" area. It says 3.2MB in my website. But what is it ?

Here the image, I highligted it with yellow:

enter image description here


I did some research and found this: https://www.lifewire.com/web-browser-developer-tools-3988965.

"Resources: This is where you can inspect cookies, local storage, app cache, and other local data sources used by the current Web page or application"

Since resources includes local data such as cookies and app cache, it would be possible for it to vary significantly from the data you actually download in your page.

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