Script Size Showdown
This comparison shows the actual download size of various analytics scripts when loaded on your website. The sizes shown are gzipped (compressed), which represents the real amount of data your visitors will download. Some tools like Hotjar require multiple script files, in which case we show the combined total size.
A smaller script size means faster page loads and better user experience, especially for visitors on slower connections or mobile devices.
| Analytics Provider | Description | Gzipped Size |
|---|---|---|
Glass Analytics https://cdn.gl8ss.com/analytics.min.js | Privacy-first web analytics | 1.75 KB |
Plausible Analytics - Pageviews Only https://plausible.io/js/script.js | Open source analytics | 1.19 KB |
Fathom Analytics https://cdn.usefathom.com/script.js | Simple & privacy-focused | 1.81 KB |
Google Analytics 4 https://www.googletagmanager.com/gtag/js | Google's flagship analytics platform | 58.91 KB |
Hotjar https://static.hotjar.com/c/hotjar-2913869.js https://script.hotjar.com/modules.ef5986d046c68a8c77c1.js | Behavior analytics | 76.82 KB |
Google Tag Manager - Empty Container https://www.googletagmanager.com/gtm.js?id=GTM-MKT25JFT | Tag management system | 79.04 KB |
PostHog https://eu-assets.i.posthog.com/static/array.js https://eu-assets.i.posthog.com/static/recorder.js https://eu-assets.i.posthog.com/static/surveys.js https://eu-assets.i.posthog.com/static/exception-autocapture.js https://eu-assets.i.posthog.com/static/web-vitals.js | Product analytics platform | 135.94 KB |
* Gzipped size represents the actual transfer size when compression is enabled. This is what users actually download.
Last updated: 8 Mar 2025