Tracking sign-ups by channel with UTM parameters; heavier and consent-dependent, but free and everywhere.
free Open ↗Measure what happened
Web analytics, performance and search data, privacy-respecting where possible.4 listed◆ Official sources
Google Analytics 4◆analytics.google.com
Google Campaign URL Builder◆ga-dev-tools.google
Tagging every launch link with utm_source and utm_campaign before it goes out.
free Open ↗Tools and services
Cloudflare Web Analyticscloudflare.com
Basic visits, referrers and Core Web Vitals on a site already behind Cloudflare.
free Open ↗
Plausible Analyticsplausible.io
Measuring launch-day traffic and goals without a consent banner; paid after a trial, or self-host.
paid Open ↗