Google Analytics 4 (GA4) handles multiple websites through the use of ‘data streams’ within a single GA4 property, allowing consolidated reporting and analysis across your digital presence. As of early 2026, this is the recommended method for businesses operating more than one website.
- Data Streams: Each website is configured as a separate data stream within your GA4 property. This allows GA4 to collect data independently for each site.
- Cross-Domain Tracking: GA4 now features enhanced cross-domain tracking capabilities, crucial for businesses with e-commerce flows spanning multiple domains or interconnected websites.
- User ID: Implementing User ID allows you to track users across all your websites when they are logged in, providing a unified view of customer behaviour.
- Enhanced Measurement: GA4’s enhanced measurement automatically tracks key events like page views, scrolls, outbound clicks, and file downloads across all data streams.
In 2026, Australian businesses need to be particularly mindful of data privacy regulations like the Privacy Act 1988 (Cth) and the ongoing evolution of digital consent requirements. GA4’s privacy-focused design, including features like data deletion requests and consent mode, helps ensure compliance. Current systems include robust data governance controls, allowing you to manage data retention and user privacy settings for each data stream individually.
Instead of navigating these technical complexities yourself, let ROI.com.au handle the setup and optimisation of GA4 for all your websites. We can take care of all this for you. Contact our team today to discuss your specific needs and unlock the full potential of your website data.
