Insights
Behaviour guardrail
A watch on every running experiment that warns when a variant makes the site worse for visitors.
HourlyFew false alarmsWarns only
The behaviour guardrail compares the variants of every running experiment with control, and warns when one shows more errors, more dead or rage clicks, or slower pages than control.
It checks every hour, and a clearly broken variant is typically flagged within about a day.
It is built to avoid false alarms: in simulations of experiments with no real effect, false warnings stayed under 0.2%.
It warns and never stops or changes a test by itself. Warnings go to Slack and in-app by default, and email is an option.