I recently added support for the "Lookup" feature on IPvFoo for mobile, but so far I've only experimented with Firefox on my Pixel 9a. I'd like to share screenshots of how it works for me, and ask users to post a comment if your phone behaves in a way that seems different or broken.
Normally, when I tap a domain or IP, it highlights, and the Lookup bubble appears below:
If I long-press or fiddle with the page zoom, I see text selection handles and a native context menu. IPvFoo doesn't control these, but my hope is that they should stay sufficiently out of the way that you can still tap the Lookup bubble:
