We are using the self hosted Matomo and we have the Referrers Manager Plugin installed. The software versions are as follows:
Matomo version: 3.8.1
MySQL version: 10.1.38-MariaDB
PHP version: 5.6.40
We are using our own WordPress plugin to track links via the Matomo API. However Matomo is not reliably tracking traffic coming from major social media sites such as LinkedIn, Facebook, Twitter, Pinterest.
I have also tried installing and configuring the Matomo WordPress plugin. Running the TestScript in the WordPress plugin produced the following successful result:
WP-Piwik 1.0.19 is successfully connected to Piwik 3.8.1. You are running WordPress 5.1.
Whilst we are seeing the odd social media traffic appearing but Matomo is not reliably tracking the traffic from social media to the WordPress website.