See which apps slow your Shopify store

Paste your store's address. In a few minutes you'll see every app that loads on your homepage, ranked by how much work it makes a shopper's phone do.

Store address

Check my store

We load your homepage five times, the way a shopper on a mid-range phone would. Nothing is installed and nothing on your store changes.

How much the most common Shopify apps slow a store

These are the five apps we found most often across 604 Shopify ecommerce stores. Each band shows the processing time the app added on the typical store.

App	What it does	Typical processing time	Stores measured
Google tag (gtag.js)	Tag manager	Heavy (300 ms to 1 second)	546
Meta Pixel	Ad tracking	Heavy (300 ms to 1 second)	504
Klaviyo	Email and SMS marketing	Heavy (300 ms to 1 second)	496
Google Tag Manager	Tag manager	Moderate (100 to 300 ms)	430
Google Ads	Ad tracking	Light (under 100 ms)	380

See all 116 apps in the App Weight Index