Cross-sell tracking for WP Rocket & Imagify to RankMath

[MathieuLamiot]

Context
Through the plugin-family, we are offering RankMath with a one-click install to WP Rocket & Imagify.

Expected behavior
We would like to measure how effective this is and get:

• A counter of installs of RankMath from WP Rocket
• A counter of installs of RankMath from Imagify
• A counter of upgrade to RankMath PRO after installing the free version from WP Rocket
• A counter of upgrade to RankMath PRO after installing the free version from Imagify

The approach should be easily expandable to other plugins / cross-selling initiative.

Additional information
Detailed Slack discussion about the technical approach: https://group-onecom.slack.com/archives/C082QRGHTJA/p1732825105335409
High-level JIRA task: https://group-one.atlassian.net/browse/STEPUP-534

GitLab tasks

• Redirection for plugin-family RankMath download tracking
• Change upgrade link in RankMath if install is coming from plugin-family
• Track conversions to PRO from specific plugins