The Analytics Landscape After GA4
Google Analytics 4 remains the dominant web analytics platform by market share, primarily because of its free tier and its integration with Google’s advertising ecosystem. The GA4 transition from Universal Analytics, covered in the Digital Marketing section of Vol. 3, prompted many organisations to evaluate alternatives for the first time — a category of tools that has grown significantly as GA4’s complexity, privacy concerns, and data model changes have made it less universally adequate.
The alternatives to GA4 serve different needs: some prioritise privacy compliance and cookieless tracking, others prioritise simplicity and actionability over data comprehensiveness, and others prioritise integration with specific tech stacks or user research needs. Understanding what differentiates the major alternatives from GA4 helps choose the right tool for specific requirements rather than defaulting to the familiar platform.
Plausible and Fathom: The Privacy-First Alternatives
Plausible Analytics (plausible.io, $9-19/month, open source self-hosting available) and Fathom Analytics (usefathom.com, $14/month) are the leading privacy-first web analytics tools: they collect usage data without cookies, don’t use fingerprinting or cross-site tracking, are GDPR and CCPA compliant by design (no cookie consent banner required), and provide a simplified dashboard that answers the questions most website owners actually have without the complexity of GA4.
The data these tools provide: page views, unique visitors, bounce rate, referrer sources, geographic location (country level), device and browser breakdown, and custom events. The data they don’t provide: individual user journeys, conversion funnels with full path analysis, and the audience segmentation that GA4’s user-level data model enables. For websites where understanding traffic patterns and content performance is the analytics goal, and where privacy compliance is a priority, Plausible and Fathom serve the need better than GA4 with significantly less setup complexity.
Mixpanel and Amplitude: Product Analytics
Mixpanel and Amplitude represent a different analytics category: product analytics focused on user behaviour within web applications rather than website traffic patterns. Where GA4 answers ‘how many people visited this page,’ Mixpanel and Amplitude answer ‘what did users do in the application, in what sequence, and at which step did they stop?’
These tools are appropriate for SaaS applications, e-commerce platforms, and any web experience where understanding the user journey through product features (rather than web pages) is the priority. Funnel analysis, cohort retention analysis (how many users who signed up in month X are still active in month Y), and feature adoption tracking are the use cases where Mixpanel and Amplitude add genuine value that GA4’s page-centric model doesn’t support as well. Both have generous free tiers appropriate for early-stage products.
Microsoft Clarity: The Free Heatmap Alternative
Microsoft Clarity (free, no user limits) provides session recordings and heatmaps alongside basic analytics — features that typically cost $100-400/month from tools like Hotjar and FullStory. Session recordings show individual user sessions (what they clicked, scrolled, and did on each page visit); heatmaps aggregate where users click and how far they scroll across many sessions. These qualitative insights complement the quantitative data that GA4 and alternatives provide.
Clarity’s data is useful for UX research and conversion optimisation: seeing where users click that isn’t a link reveals what they expect to be interactive, and seeing where users abandon a form or checkout reveals specific friction points. The privacy consideration: Clarity is a Microsoft product with Microsoft’s data practices; for organisations with strict data sovereignty requirements, the open-source alternative is OpenReplay (self-hostable session recording).
When to Use Multiple Tools
Many professional web analytics setups use multiple tools for different purposes: Plausible or Fathom for traffic overview with privacy compliance, Mixpanel or Amplitude for product analytics on the application, Clarity or Hotjar for UX research and session recording, and possibly GA4 for integration with Google Ads conversion tracking. Each tool answers different questions; using the right tool for each question produces better insights than trying to squeeze all analytics needs from a single platform.
The practical consideration: each analytics tool adds JavaScript loading to the page, which affects performance. Loading three or four analytics tools simultaneously adds meaningful page weight that may affect Core Web Vitals. Server-side analytics implementations (running analytics collection server-side rather than through browser JavaScript) mitigate this impact for organisations that need multiple analytics solutions while maintaining page performance.