I recommend to provide the WordPress plugin for HeadsUp! web forms.
This plugin allows to place pop-up web-forms on your WordPress pages.
Use these web forms to collect your visitors’ feedback about bugs on your web page, requests for new content, contact requests, support request, …
The feedback can automatically include an HTML5 screenhot of your visitor’s web browser window that helps to quickly identify graphical or copy issues. It also includes a device profile (web browser and operating system), so you know how the visitor accessed you pages.
Based on your visitors’ feedback you can then build better web sites.
The HeadsUp! plugin for WordPress in available here.