Why ad blockers and VPNs aren't enough

Helpful, but not complete

Tools like ad blockers and VPNs are often the first line of defense against tracking. And they do help. They can:

  • Reduce visible tracking
  • Limit some data collection
  • Improve basic privacy

But they don’t solve the core issue. They reduce what’s seen, but not what’s known.

What ad blockers actually do

Ad blockers primarily:

  • Stop certain tracking scripts
  • Block known ad networks
  • Prevent some third-party cookies

This reduces surface-level tracking. But modern tracking has evolved beyond this. Even with an ad blocker:

  • First-party tracking still occurs
  • Websites collect data directly
  • Server-side tracking bypasses blockers
  • Logged-in activity remains fully visible

The result is that tracking continues, just in different ways.

Comparing popular ad blocking tools

Key takeaways

What these tools do well:

  • Block visible ads
  • Reduce some tracking scripts
  • Improve browsing experience

Where they fall short:

  • Cannot stop identity linking
  • Cannot prevent data aggregation
  • Limited protection against:
    • First-party tracking
    • Cross-platform tracking
    • Email / phone-based tracking

Ad blockers are effective at reducing visible tracking—but they don’t stop your identity from being connected across services. As long as the same email, phone number, and accounts are used, your activity can still be linked, aggregated, and sold.

Additionally, companies now rely more on:

  • First-party data collection (within their own platforms)
  • Server-side tracking (processed behind the scenes)

These methods are harder to block, don’t rely on traditional trackers, and still connect directly to your identity.

What VPNs do (and don't do)

VPNs are useful for:

  • Masking your IP address
  • Securing your connection
  • Preventing location-based tracking

But they don’t hide:

  • Your email
  • Your accounts
  • Your logged-in activity
  • Your phone number

If you’re logged in, you’re still identifiable. This is the critical limitation. Even if tracking signals are reduced:

  • Your email connects activity
  • Your phone number confirms identity
  • Your accounts link behavior

Identity stitching still happens. Blocking tools reduce visibility, but they don’t stop re-identification. As long as your activity ties back to the same identity:

  • Data can still be combined
  • Profiles can still grow
  • Tracking persists

The shift you need to make

Instead of asking: “How do I block tracking?”

The better question is: “How do I stop my activity from being linked together?”

This is where a new approach becomes necessary. Not just blocking signals but separating identities with MySudo®.