This plugin will get and save referrer link when detected utm_source or http_referer. If the link doesn't include utm_source or [http_referer](https://www.php.net/manual/en/reserved.variables.server.php) doesn't set by user agent then nothing will be displayed. You can set the default link inside the shortcode in case above condition happened. eg: [tcp_referer default=www.thecartpress.com]
Pass linkify=1 inside the shortcode to make it clickable. [tcp_referer linkify=1]
Version 1.0.0