Keep Your Site Fast With a Lightweight Analytics Script
A lightweight analytics script tracks visits, events, and conversions without bloating your pages, helping you protect speed, Core Web Vitals, and SEO.
Under 10 KB
Zero speed impact
Better SEO scores
4x smaller than Google Analytics
Lightweight Analytics Script, Full Data
A lighter analytics script means faster pages, happier visitors, and analytics that do not drag down your site.
Flowsery
< 10 KB
Datafast
~14 KB
Matomo
~68 KB
GA4
~90 KB
Under 10 KB
The entire tracking script weighs under 10 KB. Smaller than most images on the web.
Performance
Zero Impact on Page Speed
No measurable effect on load time, Lighthouse scores, or Core Web Vitals.
Largest Contentful Paint
1.2s
GoodFirst Input Delay
8ms
GoodCumulative Layout Shift
0.02
GoodBetter SEO
Page speed is a ranking factor. A lighter analytics script means better search rankings.
Flowsery
0.1g
GA4
7.5g
Lower Carbon Footprint
Less data transferred means fewer emissions. Better for the planet.
Flowsery
flowsery.js
18ms
GA4
gtag.js
85ms
analytics.js
64ms
collect?v=2
120ms
consent.js
45ms
No External Dependencies
Single self-contained script. No tag managers, no third-party requests.
Revenue Providers
Custom Events
REST API
OpenClaw
Works Everywhere
Compatible with any framework, CMS, or static site. One line of code.
Add Analytics in 30 Seconds
One script tag. No build tools. No configuration. Just paste and go.
One Line of Code
Add a single script tag to your site's head. That's it. No build steps, no configuration files, no package installs.
Invisible Performance
The script loads asynchronously and never blocks rendering. Your visitors won't notice it's there, but you'll see every visit.
Full Analytics Power
Despite its size, you get real-time data, custom events, funnels, and revenue tracking. No compromises.
Analytics That Won't Slow You Down
Join thousands of websites running the lightest analytics script on the web. Free plan available β no credit card required.