Blog
Insights on website monitoring
Practical guides, deep dives, and use cases for teams who monitor the web. Written by the team behind OnChange.
Website Monitoring Best Practices for 2026
A comprehensive guide to setting up reliable website monitoring. Learn how to choose check intervals, configure alerts, and avoid common pitfalls.
Read articleVisual Diff Detection Explained: How Screenshot Comparison Works
Understand the technology behind pixel-level change detection. From screenshot capture to perceptual hashing.
How to Track Competitor Prices Automatically in 2026
Manual price checks don't scale. Discover how teams use CSS selector targeting and scheduled monitors to track competitor pricing.
API Monitoring 101: Track JSON Endpoints for Changes
REST APIs change without warning. Learn how to monitor JSON responses, track schema drift, and alert on breaking changes.
SEO Monitoring: Detect Website Changes That Impact Rankings
Title tags, meta descriptions, and canonical URLs can change without your knowledge. Catch modifications before they impact rankings.
E-commerce Monitoring: Track Product Pages, Stock & Prices
Your site might be up but showing the wrong price or stale inventory. Learn why content monitoring is the missing layer in e-commerce.
Compliance Monitoring: Track Legal & Regulatory Website Changes
Financial services, healthcare, and legal teams need audit trails when web content changes. Automate regulatory compliance monitoring.
Website Uptime vs Change Monitoring: What's the Difference?
Uptime monitors check if a page loads. Change monitors check if the content is correct. These are fundamentally different problems.