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Meta Negative Audiences

Click farms, bots, and low-quality visitors that hit your site are often re-targeted by Meta’s algorithm unless you explicitly exclude them. That means you're paying again and again for traffic that never had value to begin with. Vaudit’s Meta Negative Audience integration enables you to automatically block invalid users the moment fraud is detected, without waiting for post-campaign analysis.

Using a simple custom Pixel event, you can instantly create dynamic exclusion audiences in Meta Ads that remove bad actors from your retargeting, lookalikes, and prospecting campaigns.

 

How It Works (Client-Side Setup)

1. Detect Fraud On Your Website

Use your existing fraud detection script to monitor behavior in real time. You’ll typically flag users showing:

  • High click frequency

  • Suspicious scroll patterns

  • Geo mismatches

  • Bot-like session behavior

Already using Vaudit or your own script? You’re halfway there.

2. Trigger a Custom Facebook Pixel Event

When fraud is detected, fire a trackCustom event through the Meta Pixel.

javascript
 
fbq('trackCustom', 'FraudulentVisit', {
fraud_type: fraudData.type,
confidence_score: fraudData.score,
timestamp: Date.now()
});

This flags the visitor in Meta’s ecosystem as soon as the fraud occurs—no delays.

3. Create a Dynamic Custom Audience

Inside Facebook Ads Manager or via the Marketing API:

  • Create a new Custom Audience

  • Rule: Include users who triggered the FraudulentVisit event

  • Time window: Adjust based on fraud reoffense behavior (e.g., 7–30 days)


4. Exclude That Audience from Campaigns

Apply your “FraudulentVisit” audience as an exclusion:

  • In retargeting

  • In lookalike seed groups

  • Across all prospecting campaigns

You can also set it globally in Ads Manager to ensure future campaigns automatically exclude it.

Why This Works

Benefit Explanation
Real-Time Blocking Fraud is detected and blocked instantly, not retroactively.
Lightweight Setup Just a few lines of JavaScript and one API audience rule.
High Match Rate Leverages Meta’s browser cookies to identify users quickly.
Better Campaign Signals Keeps bots out of your learning phase and ad delivery optimization.
Reduces Ad Waste Stops paying for impressions on users who will never convert.
 

Who Should Use This?

You’re a great fit for Meta Negative Audiences if:

  • You're running Meta Ads (Facebook, Instagram, Audience Network)

  • You already have Facebook Pixel installed

  • You use or plan to implement real-time fraud detection

  • You have access to the Facebook Marketing API (or a partner who does)

 

Implementation Time: ~1 Hour

Once configured, the system runs passively in the background—removing fraudulent users from your campaigns every day, automatically.

See Also: 

With Meta Negative Audiences, you eliminate the recurring cost of invalid traffic, not just the first time they show up, but every time they try to come back.

For any support, please reach out to our team!