Replace apps with custom code and compress assets for page speed

Idea byDave DiederenSyntra Labs

Commentary byLiftArchiveOur analysis, not theirs

Remove unnecessary apps, load JS/CSS via CDN and keep images and files under 1MB to reach near-perfect PageSpeed.

Who ran it

Dave Diederen (@DaveDiederen) shared this idea on X. The numbers and screenshots are theirs.

View the original post on X

Similar tests

A

→

B

+6.47% revenue per visitor

Updated images across the store to show people matching the older target audience's age

Site-wideProduct images & gallery@DaveDiederen

A

→

B

Revenue per visitor +41.85% (£1.08 to £1.54)

New theme with a BOGO offer vs old theme

Site-wideBundles & quantity breaks@kasper_dolk

A

→

B

Idea, no result yet

Switched from a third-party theme to a native theme and matched landing pages to top ads

Site-wideAd-to-page message match@joshtCRO

A

→

B

Idea, no result yet

Steer attention with size contrast, faces and directional cues

Site-wideProduct images & gallery@kasper_dolk

A

→

B

Idea, no result yet

Lazy-load GIFs behind compressed first-frame placeholders

Site-wideThemes, page builders & page speed@DaveDiederen

A

→

B

Idea, no result yet

Replaced a third-party Shopify theme with a custom-built store experience

Site-wideThemes, page builders & page speed@joshtCRO