Open Settings
Tap Safari
Turn on Block Pop-ups
Turn on Fraudulent Website Warning
Tap Extensions
Install a content blocker from the App Store
Return to Safari settings
Enable the installed content blocker
Open Settings
Tap Screen Time
Tap Content & Privacy Restrictions
Turn on Content & Privacy Restrictions
Tap Content Restrictions
Limit web content if needed
Open Settings
Tap Wi-Fi
Tap your connected network
Configure DNS to an ad-blocking DNS if supported
Install an ad-blocking browser from the App Store
Use in-app ad blocking settings in supported apps
Turn off personalized ads in Privacy settings
Update iPhone to the latest iOS version