https://wp-statistics.com/2024/07/deprecating-server-side-tracking-in-wp-statistics-15/
Deprecating Server-Side Tracking In WP Statistics 15 - WP Statistics - WordPress Statistics Plugin
May 20, 2025 - In our last version (14.9), we displayed a notice about deprecating server-side tracking for users who rely on this method. This change will take effect in
deprecating server sidewp
https://wp-statistics.com/resources/deprecating-server-side-tracking/
Deprecating Server-Side Tracking - WP Statistics - WordPress Statistics Plugin
TL;DRWe are retiring the Server-Side tracking method. Please switch to Client-Side tracking for better accuracy, fewer conflicts with caching, and the same
deprecating server sidewp