Follow that page

Follow That Page is a web page change monitoring service that tracks specified web pages and sends email alerts when their content changes. Similar to Change Detection, Follow That Page enables OSINT investigators, journalists, and security analysts to automate the monitoring of pages relevant to ongoing investigations without constant manual checking.

The service supports monitoring of any publicly accessible URL and delivers notifications via email when changes are detected. Users can specify a minimum change threshold — filtering out minor changes like ad rotation while capturing substantive content modifications. This reduces alert fatigue while ensuring meaningful changes are surfaced.

For investigative use cases, Follow That Page supports monitoring of corporate websites for team changes or product announcements, news sites for updates to ongoing stories, government databases for regulatory changes, social media profiles (where public) for bio or activity changes, and suspect websites for content modification that might indicate awareness of an investigation.

The diff format in notifications shows before-and-after comparisons of changed content, allowing investigators to immediately understand what changed without revisiting the full page. For fast-moving investigations, this contextual diff is significantly faster than manually comparing pages.

Follow That Page has been in operation for many years, making it a reliable choice compared to newer, less established monitoring services. Its track record of consistent notification delivery is important for investigations where missing a critical change could affect the investigation timeline.

The service can be set to monitor at different frequencies — from daily checks for relatively static pages to more frequent monitoring for active targets. Paid plans support more frequent checking and more monitored pages simultaneously.

For systematic investigation monitoring, maintain a list of all actively monitored URLs with justification, expected change patterns, and investigation relevance to ensure alerts are reviewed in appropriate context.