How can I highlight words on my page for which the user is googled?

Question

I noticed that some web pages underline the words I was looking for.

Example: Try to find a virtual box and go to the VirtualBox page. Now "virtualbox" is highlighted on this page.

I want to do the same on my page. How to find out the words the user was looking for?

Answer 1

You check the referrer and parse the words. Most likely, there will even be javascript functions for this.