DataFast
DataFast is a web analytics tool built around a problem Reddit's default privacy-analytics picks do not solve: connecting a visitor to actual revenue. It plugs directly into Stripe, Lemon Squeezy, Polar, and Shopify, so instead of counting pageviews per traffic source, you see which channel produced paying customers. Alongside that it covers standard analytics, goals, funnels, visitor journeys, live visitor monitoring, and drop-in integrations for Next.js, WordPress, Shopify, Webflow, and most common stacks, plus an MCP server for querying your own data through Claude or Cursor. It supports both cookie-based and cookieless tracking and is GDPR compliant.
Key Features:
- ✓Revenue attribution: connects Stripe, Lemon Squeezy, Polar, or Shopify payments directly to traffic source
- ✓Goals, funnels, and visitor journey tracking beyond basic pageview counts
- ✓Live visitor monitoring for real-time site activity
- ✓MCP server integration for querying analytics data directly through Claude or Cursor
- ✓Drop-in integrations for Next.js, WordPress, Shopify, Webflow, and most common stacks, code and no-code
Pricing:
Starter $9/mo (1 site), Growth $19/mo (30 sites), 14-day free trial
Pros:
- + Only tool in this comparison that ties a specific payment to a specific traffic source
- + 14-day free trial, no credit card required
- + Supports both cookie-based and cookieless tracking, GDPR compliant either way
Cons:
- - Not an organic pick in Reddit's privacy-analytics threads, it solves a different problem than Plausible or Fathom
- - Starter plan caps at one website and 10,000 monthly events
- - Revenue attribution needs a connected payment processor to be useful if you aren't selling anything directly
Best For:
Founders and businesses selling a product or subscription who need to know which marketing channel actually produces paying customers, not just traffic.

