Rolling out a redesigned PDP section to 10% of traffic on Hydrogen
We rebuilt the recommendations section on our product pages and I want a careful rollout: 10% of traffic first, watch the metrics, then ramp. Our flag tool quoted us an experimentation add-on priced per 1k MAU on top of what we already pay for flags, so I am checking what Croct covers natively before we commit.
The question I always ask before adopting anything: how does rollback work? If the new section tanks add-to-cart, what exactly do I do, and does it need a deploy?
1 answer
Feature flags and server-side testing are built into the platform, there is no separately metered add-on for experimentation.
For your rollout, model the PDP section as a slot and attach an experiment to the experience. Experiments support a traffic allocation percentage, so you can set it so only 10% of traffic sees the variants while everyone else gets the default slot content. When you are ready to ramp, note that changing traffic distribution mid-experiment is strongly discouraged because it invalidates the statistics, so the cleaner pattern is to conclude the 10% experiment and start the next stage at the higher allocation.
Rollback works without a deploy: pausing the experience is a dashboard action that rolls everyone back to the default slot content immediately. No deploy, no code change, no waiting on a release window. Since content resolves in your Hydrogen loaders, the next request after pausing already serves the default section.