I did the same search at the following websites. Results:
. 800 or 900 images in Twibooru
. 800 or 900 images in Ponerpics
. 750 images in Derpibooru
. 1000 or 1100 images in rule34,xxx (my_little_pony [tags])

This shows that those MLP imageboards are all missing hundreds of images they you would expect to see in there.

 >>/11371/
*Consistently getting an error page
> "Daring Done?"
Pinkie Pie was cute or funny or stood out in that episode.

 >>/11362/
Yes of course ISPs have datacenters to do stuff. (Why'd I doubt myself.) For example, the undersea fiber Internet cables which send data at terabytes per second; these connect to said data centers on the shore near the ocean/water. 2024-11-27 video related to that:
> https://inv.nadeko.net/watch?v=Vp3X3ZArS7Q - title="When Undersea Cables Get Cut"