What files are uploaded on Verge3D networks

I have a second question: when I upload my scene on Verge3D network, I obtain a link to see my scene but this link is https://v3d.net/…..
but not a web page ?
What is this “19ue” by example ?
And what file to target to open my scene without to be on your v3d.net network but my personal server.
The .html or .gltf or the .glb file or an other file… please ?

Thks Alexander you understand my problem. Good !
So your >>The link provided v3d.net is a shortlink which redirects
is method to cache the real target to the visitor. For security I mean? or maybe directory management? I understand…..

ok it’s clear : myscene.html as target with all files of the project and so the puzzle will be use or not by the .html file.
the puzzle’s features is in several .js files so….
I learned html, css, js and php since a lot so I need to revise my knowledge a little.
With Blender I made some addons with python…