Technoscore Hotjar Tracking is best plugin for WordPress to add Hotjar code to header part of Selected/All webpages. More details are as follows:- It adds Hotjar trackng code to particular pages or all pages. Get your Hotjar code from your Hotjar account. Paste hotjar code in ‘Hotjar Script’ field under menu ‘Hotjar Tracking’ and click the ‘Save Changes’ button. Now, open up a page of your website, to trigger a page view in Hotjar.