How much Google Tag Manager slows a Shopify store
We measured Google Tag Manager on 430 Shopify ecommerce stores. This is the processing time it added on the typical store's homepage.
Moderate (100 to 300 ms)
Google Tag Manager was moderate on 42% of the stores it was measured on.
Google Tag Manager's processing time varies a lot from store to store. Stores where it's light usually load fewer of its files. If it's heavy on your store, check which of its features and settings you have switched on.
Last measured on September 26, 2026.
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ShopWeight isn't affiliated with Shopify or with any app maker listed here.
How it varied from store to store
The same app can take more work on one store than on another. It depends on how the app is set up and what else loads with it.
| Light (under 100 ms) | 79 of 430 stores |
| Moderate (100 to 300 ms) | 181 of 430 stores |
| Heavy (300 ms to 1 second) | 156 of 430 stores |
| Very heavy (over 1 second) | 14 of 430 stores |
Compare Google Tag Manager with other tag managers
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