If you use Safari as your main browser, there’s a hidden button that most people ignore and that can stop websites from chasing you with ads. It’s not a myth or a magic trick: it’s a setting buried in the Privacy section that, when activated, cuts off cross-site tracking. And in 2026, with the ad ecosystem more aggressive than ever, knowing how to use it is almost a survival skill.
The key is in Prevent cross-site tracking. This Safari privacy setting blocks third-party cookies by default, which are the ones ad networks use to follow you from one site to another. Without them, that pair of sneakers you looked at once stops appearing on every page you visit. Sounds simple, but few actually turn it on.
On Mac, open Safari and go to Safari > Settings > Privacy (in older versions it was called Preferences). There you’ll see the checkbox for Prevent cross-site tracking. Check it. That’s the hidden button everyone talks about. Below, you’ll also find Hide IP address and Block all cookies, but I’ll tell you right now: blocking all cookies breaks half the internet.
My advice: don’t go crazy. The balance between convenience and privacy is exactly there. If you block all cookies, logins fail, shopping carts empty, and some sites won’t even load. Safari’s secret button works precisely because it’s selective: it kills the tracking ones, keeps the functional ones.
On iPhone or iPad, the path is Settings > Safari > Privacy & Security. Same checkbox: Prevent cross-site tracking. Turn it on. While you’re there, activate Privacy Preserving Ad Measurement, which lets advertisers know if their ad worked without identifying you personally. It’s Apple’s way of saying: you can measure, but not spy.
One thing nobody mentions: this setting also reduces the data Safari shares with Google and other ad networks. So if you’re tired of seeing ads for things you already bought, this is your button. It won’t remove ads completely, but it stops them from chasing you with creepy precision.
Blocking new tracking cookies is useless if you keep the old ones. In the same Privacy menu, tap Manage Website Data. You’ll see a list of every site that has stored something on your device. You can delete them all or select the ones that bother you. I usually clean this up every couple of months, especially after browsing stores or news sites.
Be careful: deleting cookies logs you out of most sites. So do it when you have your passwords handy. It’s a small price for a cleaner, faster, and less tracked browsing experience. In 2026, with AI-driven ad targeting, this cleanup matters more than ever.
Safari’s Intelligent Tracking Prevention (ITP) is the engine behind this button. Since 2017, Apple has been tightening the screws on third-party cookies, and in 2026 it’s one of the most aggressive systems on the market. It doesn’t just block cookies: it also limits fingerprinting, hides your IP, and isolates storage per site.
But don’t fool yourself. It doesn’t make you invisible. If you log into Google, Facebook, or Amazon, those sites still know who you are. The secret button stops cross-site tracking, not first-party tracking. That’s the nuance most articles skip, and it’s the one that matters.
Extra settings that multiply the effect
- Hide IP address: activate it from iCloud Private Relay if you have iCloud+. It masks your real IP from trackers.
- Block pop-ups: yes, always. Many ad-chasing scripts enter through pop-ups.
- Prevent cross-site tracking: the main button, already covered.
- Use a content blocker: AdGuard or 1Blocker from the App Store. They work alongside Safari, not against it.
With these four, Safari becomes a pretty hostile place for ad networks. Not perfect, but much better than Chrome or Edge out of the box. And all without installing weird extensions or paying for a VPN.
The reality check: ads won’t disappear, but they’ll stop chasing you
Let’s be honest: Safari’s secret button doesn’t eliminate ads. It eliminates the ones that follow you. You’ll still see ads on websites, but they’ll be based on the page you’re on, not on your entire browsing history. That’s the real difference between being tracked and being advertised to.
If you want zero ads, you need a content blocker and, ideally, a paid subscription on the sites you use most. That’s the honest deal in 2026. But for 90% of users, activating Prevent cross-site tracking and cleaning cookies from time to time is enough to stop feeling chased.
Step-by-step: activate it in 30 seconds
- Open Safari on Mac, iPhone, or iPad.
- Go to Settings (or Preferences) > Privacy.
- Check Prevent cross-site tracking.
- Tap Manage Website Data and delete what you don’t need.
- Optional: turn on Hide IP address if you have iCloud+.
That’s it. No apps, no hacks, no tutorials from 2019. This is the button Safari hides in plain sight and that, once you know it, you won’t turn off. Your browsing gets faster, your privacy gets stronger, and those ads that followed you around like a lost puppy finally let you go.
«Safari’s secret button isn’t secret because it’s hidden, but because nobody reads the Privacy menu. Now you have no excuse.»
