How to Integrate Convert A/B Testing with Shopify (Using the Convert Shopify App)
A complete setup guide for running Convert A/B tests on Shopify with the official app — goals, API keys, tracking, and checkout-safe purchase measurement.
I build Shopify storefronts, and I test what actually works.
I'm Saabbir. I've been building for the web since 2016. These days most of my work is Shopify themes, frontend performance, and A/B testing. I'm a senior engineer at EchoLogyx in Dhaka.
Most of what I know came from building things, breaking them, and working out why they broke.
Writing
Posts about Shopify, A/B testing, analytics, and CSS — written down after I had to work it out.
How to fix Shopify Sandbox URL Pageview Issues in GA4
Custom Shopify pixels run in a sandbox, so GA4 can record iframe URLs instead of real landing pages. This guide covers the GTM and pixel setup that sends the correct page_view.
Safari inline-block fix for CSS columns layout
Safari misplaces borders in CSS multi-column layouts when items use display inline-block. Here is the problem and the fix.
Snippets
Short bits of code I look up when the same problem comes back.
Safari back-forward-cache override
Prevent Safari from serving stale cached pages on back/forward browser navigation.
Get all non native window variables
Extract all custom user-defined window properties in browser environment.
Detect Horizontal Swipe
Detect horizontal (left/right) swipe gesture on mobile touch devices with JavaScript.
What I do
Most of a week is Shopify themes, A/B tests, making pages faster, and getting the tracking right.
Shopify themes
Built from scratch, or working inside a theme someone else wrote. Most of my time goes on the parts that are easy to get wrong: the product page, the cart, and whatever is making the first screen slow.
A/B testing
I set up tests that answer one question at a time, then read the results honestly — including the ones that come back flat.
Making pages faster
This starts with measuring the page properly instead of guessing. Then it's getting the hero image on screen sooner, stopping the header from jumping, and finding which third-party script is costing two seconds.
Tracking and analytics
Set the tracking up so the numbers mean something. If you can't trust the funnel, there's no point testing against it.
Built for myself
Personal projects I needed, then left on GitHub.
ios-quirks
A running list of the ways iOS Safari differs from every other browser, with fixes I've actually tested. Started because I kept solving the same problems and forgetting how.
shopify-tab-extension
A Chrome extension that replaces the new-tab page with recent Shopify and web development videos. Built for myself, then left it public.
school-finder-bangladesh
Find schools near you in Dhaka. A small thing, but the kind of problem that is genuinely annoying if you live here.
From people I worked with
It's nice to see good feedback on the work.
Saabbir is an excellent and trustworthy frontend developer who I plan to continue to use for frontend projects in the future. Thanks for your great work!
Saabbir has been an integral part of our development operations. Despite being remote with very different timezone, he's been very capable of adapting and integrating into our US-based operations. Very creative, prompt, and skilled.
Get in touch
A question about a post, or a hello. I usually reply within a day or two.