KVKK Compliance in Web Analytics: Google Analytics 4, Matomo and Alternatives

⏱️ Reading time: 13 min · 📁 Category: KVKK & Web Analytics

KVKK Compliance in Web Analytics: Google Analytics 4, Matomo and Alternatives

Web analytics tools for digital marketing and user experience measurement are essential;
However, by late 2025, the article reports closer scrutiny of these tools’ KVKK/GDPR compliance in both the EU and Türkiye.
In particular, Google Analytics 4 (GA4) and similar US-based solutions face complaints concerning
international data transfers and technical identifiers
, according to the article.

Organisations therefore need to assess analytics tools for legal compliance and data transfer risks, as well as their technical capabilities.

The article summarises a position attributed to European authorities in 2025: Google Analytics requires appropriate additional measures for GDPR compliance. 1. GA4 and Data Protection Agenda: Why is it So Controversial?

GA4 offers more advanced anonymization than previous versions; however, some risks remain:

• IP address processing: the article describes uncertainty about GA4’s stated anonymisation in the EU
• Risk of data transfer to the United States (due to Google infrastructure)
• Behavioral profiles created with event-based monitoring
• Integration with 3rd party advertising systems

Common view of EU DPAs (France, Austria, Denmark): The article’s position is that GA4 alone does not meet GDPR Article 46 transfer conditions and requires additional technical measures and a DTIA; the applicable transfer mechanism needs a current legal assessment. 2. GA4 server-side tagging: an approach to strengthen KVKK compliance

Server-side tagging routes analytics processing through a server and can improve control over data sent outside the EU or Türkiye, depending on the configuration.

KVKK-related advantages of server-side tagging:

• User IP masking is done more effectively
• Data transferred to 3rd party is minimized
• Personal data categories can be filtered
• Cookie lifetime and scope can be controlled

This does not make Google Analytics risk-free; the article describes it as a potentially sufficient technical measure in Board audits, subject to the specific implementation and legal assessment.

Server-side processing does not remove cookie obligations; the article states that advertising and analytics cookies still require explicit consent. 3. IP Masking (Anonymization): What Does It Mean in terms of KVKK?

IP addresses are treated as personal data under KVKK. Masking them is therefore important for GA4 and other tools.

IP masking models:

• Automatic masking: described as GA4’s default, though the article notes technical uncertainty
• Server-side masking: truncating the final octet of an IP address
• Proxy-based masking: preventing the IP address from being sent to a third party

The article attributes to the EDPB the position that technically reversible IP masking is not valid anonymisation. 4. European regulatory audits: GA4 decision patterns in 2024–2025

Common findings of EU data protection authorities:

• SCC + GA4 is not enough -> DTIA mandatory
• U.S. surveillance risks (FISA 702) should be considered
• IP masking alone does not ensure sufficient anonymity
• Google’s data centres may replicate data outside the EU
• GA4 cannot be executed without user consent

Most critical point: GA4 can perform behavioural profiling; the article therefore calls for cookie consent and clear privacy information. 5. Matomo: One of the Safest Alternatives in terms of KVKK and GDPR

The article presents self-hosted Matomo as avoiding international transfer risks by keeping data on company servers; this depends on server location, integrations and access arrangements.

Advantages:

• Data does not go outside EU/Turkey
• A cookieless mode is available
• IP masking can be customized
• Profiling is limited

Disadvantages:

• requires more technical setup
• may offer less advanced reporting than GA4

In KVKK audits, Matomo -> is considered a low-risk analytical solution. 6. Lighter alternatives: Plausible, Fathom, Simple Analytics

These tools minimise data collection through cookieless analytics.

Featured features:

• The article describes these tools as processing no personal data, with anonymised IP addresses and no fingerprinting; the actual configuration must be assessed.
• May operate without a cookie banner, depending on configuration and applicable requirements
• Low risk for GDPR/KVKK

These solutions are especially ideal for content sites, blogs and basic reporting needs.

7. Technical and legal measures for KVKK-compliant web analytics

• Separate cookie categories: essential, analytics and advertising
• explicit consent mechanism (mandatory for analysis cookies)
• Application of IP masking
• Server-side tagging control
• DTIA documentation for third-party tools such as GA4
• Storing data transfer logs
• Update of privacy notice

8. Late-2025 outlook: growing regulatory effects on analytics tools

• Cookieless analytics solutions will become more widespread
• Technical measures requirements for GA4 use will increase
• Migration to self-hosted analytics will accelerate
• EDPB may publish specific guide to analytics tools

Approaching 2026, choosing analytics tools is a compliance and risk-management decision as well as a marketing-performance decision.

Web Analytics Compliance Analysis