An alert system is only trusted if it's reliable. Too many false positives and people ignore it; too slow and it's useless. The goal is fast, accurate, actionable alerts.
Cutting false positives
False positives usually come from inconsistent reads — a page that loads differently depending on the IP or region. Consistency reduces noise.
- Confirm changes with a second check
- Use consistent IPs and regions per item
- Ignore transient errors and timeouts
Making alerts actionable
An alert should carry everything needed to act without a second lookup.
- Include product, variant and direct link
- Route to the right channel or bot
- Rate-limit to avoid alert fatigue