×
image

How We Develop Ad & Tracker Blocking Inside VPN Apps

Home | Blogs | How We Develop Ad & Tracker Blocking Inside VPN Apps
Tue, Jan 6, 2026 image
admin Cybersecurity / App Development

How We Develop Ad & Tracker Blocking Inside VPN App

Let’s be honest—most people don’t think much about ads. They’re just there. A banner at the top of a page, a video before content, a pop-up you close without reading.

But behind those ads is something far less visible—and far more intrusive.

Ads and trackers quietly watch how people browse, which apps they open, where they are, and how long they stay. Over time, this data builds detailed profiles that follow users across websites, apps, and even devices.

At TecClub Technology, we don’t believe privacy should stop at hiding an IP address. A VPN should actively protect users from being tracked in the first place. That’s why ad and tracker blocking isn’t an extra toggle in our VPN apps—it’s part of the foundation.


Ads Aren’t Just Annoying — They’re Watching

For many users, ads feel like a small inconvenience. In reality, they’re often connected to tracking systems designed to collect as much behavioral data as possible.

This includes:

  • Which websites someone visits

  • How often they open certain apps

  • Their device type and location

  • How long they stay on a page

  • What they click—or don’t click

On public Wi-Fi or unsecured networks, this tracking becomes even riskier. A VPN alone helps, but without blocking trackers, a lot of data still slips through.


Why Browser Ad Blockers Aren’t Enough

Browser-based ad blockers do a decent job—but they only see part of the picture.

They work:

  • Only in certain browsers

  • Only on websites

  • Only while the browser is open

They don’t protect:

  • Mobile apps

  • Background app traffic

  • System services

  • Games, streaming apps, or smart devices

That’s why we take a different approach.

Instead of blocking ads in the browser, we block them inside the VPN itself, at the network level—before they ever reach the device.


Blocking at the Network Level: Quiet, Powerful Protection

When ad & tracker blocking is built into the VPN tunnel:

  • Every app is protected

  • Trackers are stopped before they connect

  • No heavy browser extensions are needed

  • Protection stays consistent across platforms

The user doesn’t have to think about it. It just works.


How We Actually Do It

1. Custom DNS That Knows What to Block

Everything starts with DNS—basically the internet’s address book.

We integrate private DNS resolvers directly into the VPN system. These resolvers are trained to recognize domains used for ads, trackers, malware, and phishing.

When an app tries to connect to one of these domains, the connection is simply stopped.

No loading. No tracking. No data shared.


2. Encrypted DNS for Complete Privacy

Stopping trackers isn’t enough if DNS requests themselves can be monitored.

That’s why all DNS traffic inside our VPN apps is encrypted using:

  • DNS over HTTPS (DoH)

  • DNS over TLS (DoT)

This prevents:

  • ISP monitoring

  • Public Wi-Fi snooping

  • Third-party DNS logging

Every request stays private, end to end.


3. Smart Blocklists (Not “Block Everything” Lists)

Overblocking breaks websites—and frustrates users.

We carefully maintain and update blocklists that focus on:

  • Known ad networks

  • Tracking platforms

  • Malware and phishing domains

They’re:

  • Updated regularly

  • Tuned to avoid false positives

  • Optimized for performance

The goal is protection without disruption.


4. Works With Every VPN Protocol

No matter how users connect, protection stays the same.

Our ad & tracker blocking works seamlessly with:

  • WireGuard

  • OpenVPN

  • IKEv2

  • VLESS / VMess

  • Shadowsocks

  • Sing-box

Users can switch protocols freely without losing privacy.


Designed for Real People, Not Just Power Users

Flexible Protection Levels

Some users want maximum blocking. Others just want the basics.

That’s why we offer:

  • Standard ad blocking

  • Tracker-only protection

  • Malware & phishing defense

  • Custom DNS options

Simple for beginners. Powerful for advanced users.


Split Tunneling Without Confusion

If split tunneling is enabled:

  • VPN-protected apps get ad blocking

  • Bypassed apps use system DNS

We make this clear in the UI so users always understand what’s protected.


Protection That Never Drops

Network changes happen. Wi-Fi disconnects. Mobile signals fluctuate.

If the VPN connection drops:

  • DNS requests are instantly blocked

  • System DNS is never exposed

  • Kill switch logic keeps everything secure

Even short interruptions don’t leak data.


What Users Actually Notice

When ad & tracker blocking is done right, users feel the difference:

  • Pages load faster

  • Apps use less data

  • Battery life improves

  • Browsing feels cleaner and calmer

The best compliment?
Most users forget it’s even there.


Why This Matters for VPN Products

For VPN businesses, built-in ad & tracker blocking:

  • Builds trust quickly

  • Improves user retention

  • Differentiates the product

  • Reduces support issues caused by malicious ads

It’s not just a feature—it’s a value multiplier.


Why We Build It This Way at TecClub Technology

We don’t bolt privacy on later.

We build:

  • Native, system-level protection

  • Privacy-first DNS infrastructure

  • Protocol-independent blocking

  • Scalable solutions for real-world traffic

Security should feel invisible—but it should always be working in the background.


Final Thoughts

Ad & tracker blocking inside a VPN isn’t about hiding ads—it’s about taking control back.

By stopping trackers before they connect, we protect users at the network level—where privacy matters most.

At TecClub Technology, we don’t just build VPN apps.
We build digital protection people can actually trust