<file-size> Web Component displaying Minified & GZip sizes and (optional) GZThermal Image
See: Dev.to post: Size does matter
<file-size src="..."></file-size>
<file-size gz src="..."></file-size>
Hold down alt
Key + click the thermal image to open the .js source file.
<script src="https://file-size.github.io/element.js">
OR
import {} from "https://file-size.github.io/element.js";