Shopify
Cloudflare Workers
Klaviyo
Slack
Google Analytics 4
Microsoft ClarityRollout
Raise the share
Move from 5% to everyone as the results come in.
Feature flags
Ship a change to some visitors first
Put a new feature behind a flag, show it to a share of visitors, measure it against everyone else, then widen it.
Flag: sticky_add_to_cart
OnStep 1
5%
Step 2
25%
Step 3
50%
Step 4
100%
{ "variant": "on", "copy": "Add to cart" }
How flags work
A switch your code reads, measured like a test
A key per flag
Your code reads the flag's value for the visitor. A key is live in one test at a time.
Widen it in steps
Start with a small share of visitors and raise it as the numbers hold.
A flag rollout view
Results for a flag test include a view of how the rollout went.
What you can do with flags
Release with a safety net
Results
Measured like any test
Conversion, revenue and profit per visitor for flag on and flag off.
Code
Read it anywhere
On a theme through window.CRO.flag(), or from the group headers the middleware sets on a headless store.
Flags work with your storefront
Built for every role
For the people who ship the store
Growth and brand marketers
Release a new page feature to a share of traffic and see what it does before it reaches everyone.
Merchandising leads
Release a new product filter to a share of visitors first.
Why Growth Dept CRO
Why teams flag features with Growth Dept CRO
Capability
Growth Dept CRO
Results from Shopify orders
An order counts only when Shopify's own record ties it to the visitor's group.
Profit per visitor
Add your cost of goods and every test reads profit per visitor beside revenue and conversion.
No flicker
The group is decided before the page paints, so shoppers never see the control first.
Audience targeting
Run a test for mobile visitors, new visitors, one country or one traffic source.
Find out what is worth testing on your store.
Book a 45-minute call with the Growth Dept team. We look at your store and your traffic, and tell you which tests to run first.