Moving the insertion point long distances in the Safari address bar is one of the most tedious interactions in iOS.
Custom URL keyboard to the rescue! https://testflight.apple.com/join/vlrv6dn1
Join the URL Quick Keyboard beta

Available on iOS

This keyboard was created by ‪@elijah
@siracusa @elijah Elijah, as someone who uses long urls with many querystring arguments a lot in my ecom website job, can you add “&” to those top 2 buttons as well, to jump to the next/previous querystring arg. Thanks!! I’m going to use this keyboard a LOT!