Insights & Updates
Tips, guides, and news about website monitoring and visual change detection.
What the change percentage actually means in screenshot monitoring
Visual diff shows 22% changed, but the page looks the same. The percentage is always mathematically correct — but it only tells the truth when the page template stays stable between captures. Here's how to tell the difference and what to do about it.
False Positives in Screenshot Monitoring: What Causes Them and What to Do
We got 14 alerts in one day from a single website. The problem was a live counter and a logo carousel triggering visual diff on every capture. Here is how we fixed it with threshold tuning and hide selectors.
Text Monitoring vs Visual Diff: What Each One Actually Catches
Text monitoring and visual diff solve different problems. One reads the code, the other compares what visitors actually see. Here's how to pick the right one.