Free Shipping Bar Pro
Case Study
Technical Hypothesis
"Can we build a conversion-driven WooCommerce tool with Zero-JS impact on the frontend?"
A technical response to heavy, bloated marketing plugins. Tested for extreme scale and performance.
Increases AOV without penalizing Core Web Vitals. Born in an optimization laboratory.
Not Just What It Does.
How It's Built.
Zero-JS Footprint
All cart logic is handled server-side using WooCommerce's native fragment system. No extra JavaScript payloads that slow down first contentful paint or time to interactive. Standard industry plugins typically add 50-100kb of JS overhead. Our approach reduces this to 0kb on the client-side main thread.
Database Efficiency
Smart caching layer with minimal queries. Options are loaded once per request and reused. No redundant database hits that could create bottlenecks at scale.
Core Web Vitals First
Inline critical CSS (< 2KB), no render-blocking resources, and progressive enhancement patterns. Built to score 100/100 on Lighthouse even with the bar active.
The Lab Philosophy
This plugin was built to challenge the assumption that e-commerce marketing tools must sacrifice performance for functionality. Every architecture decision was made with both conversion impact and technical excellence in mind.
Everything needed to grow
Powerful features included in the free version
Placement Flexibility
Use the Sticky Mode for instant visibility or place the bar manually anywhere using
the [shortcode].
Blazing Fast
Zero heavy dependencies. Built to be lightweight (under 5kb) so it never slows down your shop.
Modern Stack
Fully compatible with WooCommerce Checkout Blocks, AJAX cart fragments, and modern Block Themes (FSE).
Get the Production-Ready Version
The core of the experiment is open source. If you require the production-grade system with automation capabilities and scalability, you can acquire an official license.
Essential features for any store.
- Global Shipping Threshold
- Custom Colors & Messages
- Sticky Bar & Shortcode
Low entry cost. Cancel anytime.
- Everything in Free
- Geolocation Targeting
Target specific countries
- Scheduling System
Automate campaign dates
- Premium Email Support
Pay once, own it forever.
- All Pro Features
- Lifetime Updates
Never pay for renewal
- Lifetime Support
Direct dev access
Technical Considerations
Checkout Block Compatibility & Context
Yes! Free Shipping Bar Pro is tested with the latest WooCommerce Cart and Checkout blocks, ensuring the progress bar updates correctly even in block-based themes.
Responsive & Viewport Behavior
Absolutely. The bar is fully responsive. You can test it by resizing this browser window (the demo works exactly like the plugin).
Need this level of optimization for a custom enterprise project? Consult with Ionastec