Performance That Powers Growth

Stop losing customers to the "loading" spinner. Streak.js is engineered for sub-second speeds and perfect Core Web Vitals.

The Performance
Gap

Most modern websites suffer from JavaScript bloat, delaying content visibility. Streak.js fixes this by prioritizing instant initial paint, so users see content immediately while interactivity loads smoothly in the background.

server.ts

import { Streak } from "streak";

Streak.serve({
    port: 3000,
    async fetch(req) {
        return new Response("Hello from StreakJS!");
    }
});

import { Streak } from "streak";

Streak.serve({
    port: 3000,
    async fetch(req) {
        return new Response("Hello from StreakJS!");
    }
});

Core Performance
Pillars

01

The "Paint First" Architecture

We've decoupled visibility from interactivity. With our Hybrid Rendering Engine, Streak.js serves a fully pre-rendered page.

Users see your products and content in under 200ms.

Lower bounce rates and higher initial engagement.

02

Load Less. Respond Faster.

Why load the code for a footer or a complex gallery if the user is still reading the hero section?

Loads heavy scripts only on user viewport demand.

Zero unused JavaScript in the critical render path.

03

Optimized for Core Web Vitals

Google rewards speed. Streak.js is built from the ground up to ace the metrics that matter for SEO:

Perfect LCP, INP, and zero cumulative layout shift.

Maximized search ranking and organic visibility.

Built for the
Modern Web

Agentic Commerce Ready

As AI agents and autonomous procurement become the norm, your website needs to be machine-readable and ultra-responsive. Streak.js provides the structured, fast-loading architecture that AI scrapers and search bots prefer.

E-commerce at Scale

Every 100ms of latency costs 1% in sales. Streak.js ensures that your product pages load fast, even during high-traffic peaks like Black Friday or regional holidays.

IT JUST FEELS FASTER

We didn't just want a site that scored well on a test, we wanted a site that felt alive. Streak.js delivered a level of snappiness we hadn't seen with traditional React setups.

Rakesh, Engineering Manager,

SUB-SECOND GLOBAL RENDERING

Migrating our flagship store to Streak eliminated hydration lag completely. Real users across Europe and Asia saw catalog pages render instantly under 180ms.

Indrajith , Technical Lead,

PERFECT CORE WEB VITALS

Zero cumulative layout shift and pristine INP scores out of the box. Streak gave our dev team the freedom to ship rich interactive components without speed penalties.

Kevin, Digital Marketing Executive,

Technical Mastery
Simplified

The Technical "How"

Feature

The Business "Why"

Edge-side content delivery

Smart Caching

Instant global access for every user.

Aggressive tree-shaking

Minimal JS Footprint

Faster loads on slow 3G/4G networks.

Predictive background loading

Pre-fetched Routes

Navigating between pages feels instantaneous.

Automated WebP/AVIF delivery

Image Optimization

High-def visuals without the heavy file weight.