Here is the the service batch: 31 short porn clips, from teasers to full loops.
If self is your thing, start at the top row - those gifs match the service closest.
No. All 31 the service gifs on PornHubGif loop without signing up.
Yes. 4 of the clips are vertical and the whole site runs fine on mobile.
They are matched by title and tags, and the closest ones are shown first.