Review Safari on iPhone / iPad privacy settings step by step, with official documentation, compatibility tradeoffs, and instructions for undoing changes.
These are iPhone and iPad app instructions. These editions normally use WebKit, but they have different privacy features and menus from Safari and from their desktop editions. Desk cannot verify the engine. Apple permits alternative engines in some regions. Safari settings do not configure every other browser app.
Keep cross-site tracking prevention on
Settings → Apps → Safari → Privacy & Security
Open the device Settings app, then Apps → Safari.
Keep Prevent Cross-Site Tracking on.
Try a familiar website before changing another setting.
Limits third-party cookies and data in Safari. It does not configure Brave, Chrome, or Firefox.
To undo: Return to this switch if you need to troubleshoot; restore protection afterward.