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ADD-ONS

Anonymizer — Granular GDPR anonymization

30+ settings for GDPR-compliant anonymization: IP, Client ID, User ID, Session ID, Referrer, User Agent, campaign parameters, and more.

10 min Read Pokročilý Updated 5.6.2026

What is the Anonymizer?

The Anonymizer is an add-on with 30+ granular settings for server-side anonymization of personal data in compliance with GDPR. It lets you precisely control which data is anonymized, removed, or kept.

Why use the Anonymizer?

  • GDPR compliance: Automatic anonymization of IP addresses, CID, User ID, etc.
  • Flexibility: 30+ settings — anonymize only what you need.
  • Without data loss: Anonymization preserves the analytical value of the data.
  • Audit trail: All anonymizations are logged.

How to activate

  1. Go to Dashboard → Add-ons
  2. Turn on the "Anonymizer" toggle
  3. Configure 4 anonymization categories:

Anonymization categories

1. Core Anonymization (6 fields)

  • IP Address: anonymize (192.168.1.0), anonymize_strictly (0.0.0.0), remove
  • Client ID: monthly (resets every month), anonymize_strictly (hash), remove
  • User ID: anonymize (hash), remove
  • Session ID: anonymize, remove
  • Query Params: remove_sensitive (utm_*, fbclid, gclid)
  • Referrer: anonymize_domain (e.g. facebook.com → social), remove

2. System Anonymization (6 fields)

  • User Agent: anonymize (strips browser versions), remove
  • Country: anonymize_to_continent (CZ → Europe)
  • Browser Plugins: remove
  • Screen Resolution: anonymize_to_range (1920x1080 → 1920x1200)
  • Screen Colors: remove
  • Language: anonymize_to_primary (cs-CZ → cs)

3. User Agent Client Hints (8 fields)

  • uap — Platform (Windows, macOS, Linux)
  • uapv — Platform version
  • uam — Mobile flag
  • uab — Browser brand
  • uabv — Browser version
  • uafvl — Full version list
  • uaw — WoW64 flag
  • uaarch — Architecture

4. Ads Campaign Params (10 fields)

  • utm_source, utm_medium, utm_campaign
  • utm_term, utm_content, utm_id
  • fbclid (Facebook Click ID)
  • gclid (Google Click ID)
  • ttclid (TikTok Click ID)
  • msclkid (Microsoft Click ID)

✅ Recommended settings for GDPR:

  • IP: anonymize (or anonymize_strictly for Germany/AT)
  • Client ID: monthly
  • User ID: anonymize
  • Referrer: anonymize_domain
  • User Agent: anonymize
  • Campaign parameters: keep (needed for attribution)
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