If you have ever tried building a website change detection system or visual testing tool, you’ve likely stumbled into the "False Positive Trap."
You configure a cron job to monitor a target URL, take snapshots every 15 minutes, and compare them. But within hours, your inbox is flooded with alerts for:
Tailwind CSS dynamic hash class mutations (e.g. class="bg-blue-500_a3f9" turning into class="bg-blue-500_b81c" after a deployment)
Lazy-loaded images rendering at offset offsets
Anti-bot verification scripts altering invisible DOM nodes
