In other browsers

iOS is a fairly closed operating system and ad blocking functionality beyond Safari is very limited. The first thing you need to do is enable DNS protection and select an ad-blocking DNS server (for example, AdGuard DNS):
Go to AdGuard → ProtectionDNS protection.
Enable DNS protection.
In DNS server, select AdGuard DNS.
If that didn’t help, go to the same website in Safari. In this browser, AdGuard can block ads very effectively.
Downloading AdGuard To install AdGuard, click the file indicated by the arrow Select "Open" and click "OK", then wait for the file to be downloaded. In the opened window, drag the AdGuard icon to the "Applications" folder. Thank you for choosing AdGuard! Select "Open" and click "OK", then wait for the file to be downloaded. In the opened window, click "Install". Thank you for choosing AdGuard!
Install AdGuard on your mobile device