Announcing DiffFlow: Developer-Grade Website Change Monitoring

Why DiffFlow?

Most website monitoring tools email you every time a pixel moves. DiffFlow is different. We built a developer-grade platform that tracks meaningful content changes.

Zero-Noise Filtering

DiffFlow strips scripts, styles, CSRF tokens, and dynamic attributes before computing hashes. You get alerts only when real content changes — no false positives from analytics cookies or A/B testing frameworks.

CSS Selector Precision

Target exactly the content you care about with CSS selectors. Monitor competitor pricing by selecting .price-amount, track documentation changes with article.main-content, or watch a specific stock status with #add-to-cart.

Real-Time Intelligence

Our high-performance monitoring engine checks your targets as often as every 30 seconds. When a change is detected, you're notified immediately via email, push notification, or webhook.

SSRF Protection

Every fetch goes through DNS validation and IP range filtering. We block RFC-1918 addresses, link-local ranges, and resolve all domains server-side. Your monitors are safe from SSRF attacks.

Built for Scale

From individual developers tracking competitor pricing to enterprises monitoring compliance pages — DiffFlow scales from 3 monitors (free) to unlimited (Pro). Each monitor gets its own configurable check interval, CSS selector, text filter, and notification preferences.

Ready to get started? Create your first monitor in under 60 seconds.