🐌 Free · no signup · no app install · read-only
Which apps are taxing your homepage the hardest?
Every app you install leaves a script on your storefront, and most of them keep loading on pages where they have nothing to do. We pull every third-party script off your homepage, name the app behind it, and rank them by how much they get in the browser's way.
Based on publicly available data only. Informational, not legal advice.
What this checks
- Every third-party <script> on the homepage, attributed to the app or service behind it
- Which of them load synchronously in <head>, where they hold up the first paint
- The transfer size of the biggest ones, measured with a real HEAD request (up to 8 files)
- Apps whose widget has nothing to render on this page, yet whose code still downloads
- Two apps doing one job — two review widgets, two chat widgets, two search apps
- Third-party stylesheets and legacy libraries (jQuery, Font Awesome) still in the critical path
- Whether you preconnect to the third-party domains you actually depend on
FAQ
Why don't you give me a millisecond number per app?
Because we would have to make it up. Measuring real milliseconds needs a browser that runs your JavaScript on a controlled device and network. What we report instead is observable from the page itself: whether a script blocks the parser, where it sits in the document, and how many bytes it transfers. Those facts are what the milliseconds are made of, and unlike a made-up number they are checkable.
What can this tool not see?
We read the HTML exactly as your server sends it, without running any JavaScript. So a script that a tag manager injects at runtime, a widget that only appears after scroll, or an app that loads itself from inside another app's bundle is invisible to us. Those are marked “could not tell”, never guessed. We also only look at the homepage — a review app that is dead weight here may be essential on a product page.
Should I just uninstall everything at the top of the list?
No. The list ranks cost, not value — your most expensive script may also be the one bringing in the most revenue. The cheap wins are usually the other two columns: scripts that could be deferred instead of blocking, and apps loading on pages where they render nothing at all.
Want the blocking scripts deferred and the dead weight cut?
We are a Shopify studio. The audit is free; the fix is yours to make — or ours to ship.