Re: How to prevent ads that redirect my phone browser

send a support ticket with the link of the offending add to the mods

or remove the ads completely either by buying premium or addblocker

there is nothing you as the user can do (other than installing an addblocker that blocks all ads and thereby hurts royalroad as well) because those ads use legal functions of the browser, functions that are required for quite a bit of other websites to work.