Image Testing FAQs

Absolutely. You can test a single product or an entire collection. Each product gets its own image variations.

No! TestSignal handles everything automatically. No theme edits, no scripts, and no developers required.

We recommend 2–3 groups for best clarity, but you can run up to 5. More groups = more learning, but requires more traffic.

No. Your original images stay untouched. TestSignal swaps the displayed image only for the visitor group — your Shopify admin remains unchanged.

No. TestSignal uses lightweight image-swap logic optimized for Shopify, ensuring fast performance with no layout shifting.

No. TestSignal only swaps front-end images for shoppers. Your canonical product page, alt text, and metadata remain untouched in Shopify.

100%. TestSignal tests run safely on your live site with zero risk. Your real product data, SKUs, and pricing remain unchanged — only the displayed image varies.

Yes. Once a shopper is assigned to a test group, TestSignal “locks” them to that variation. This ensures:

• No flickering — images load smoothly using optimized swap logic so visitors never see brief flashes of the original photo.

• No image switching mid-session — once a shopper is assigned to a test group they remain locked to that variation for the session and future visits.

• A consistent and trustworthy customer experience — stable visuals and accurate product details prevent confusion and preserve trust.

Yes! Multi-metric testing is allowed.
If you want, you can also stack experiments—but we recommend running one primary experiment per product at a time for clean results.

Everywhere that product appears — homepage sections, collection grids, PDP, quick views — the correct test image is shown automatically.

Yes! TestSignal supports all Shopify media types:

• Images (JPG/PNG/WebP)
• GIFs
• Videos
• 3D/AR files

As long as Shopify supports it, you can test it.

Nope. TestSignal automatically handles cache-busting and ensures each visitor receives the correct image variation instantly.