Sub-1.5 KB Featherlight Tracking Script
45x smaller than Google Analytics 4. Zero impact on Core Web Vitals.
Summary: Sub-1.5 KB Featherlight Tracking Script
By Sufyaan Studio Research•Verified August 2026
Our tracking script is only 1.15 KB gzipped with zero external dependencies. It loads asynchronously with the defer attribute and delivers payloads via the non-blocking Beacon API, ensuring maximum PageSpeed scores and fast Largest Contentful Paint (LCP).
KEY TAKEAWAYS
- 1.15 KB gzipped script budget (45x lighter than GA4).
- Zero external dependencies or runtime libraries.
- Asynchronous non-blocking loading via defer and navigator.sendBeacon.
- Automatic single-page application (SPA) history navigation tracking.
Bundle Size
1.15 KB
Gzipped & minified
GA4 Comparison
45x lighter
45 KB vs 1.15 KB
Execution Time
< 2ms
Zero UI blocking
IN-DEPTH ARCHITECTURE
How It Works Under the Hood
Heavy analytics SDKs degrade website performance and hurt Google search rankings. Analytics by Sufyaan Studio is engineered to be featherlight, executing in under 2 milliseconds and keeping your Core Web Vitals in the 100% green zone.
Key Capabilities & Benefits
- 1.15 KB gzipped script budget (45x lighter than GA4).
- Zero external dependencies or runtime libraries.
- Asynchronous non-blocking loading via defer and navigator.sendBeacon.
- Automatic single-page application (SPA) history navigation tracking.
CODE IMPLEMENTATION
One line of HTML that loads in milliseconds.
IMPLEMENTATION SNIPPET
FAQ & VERIFICATION
FAQ: Sub-1.5 KB Featherlight Tracking Script
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EXPLORE MORE COMPARISONS & ALTERNATIVES
CORE FEATURES
DEVELOPER GUIDES