There's no special coding, simply copy and paste a small script to your website (we provide the instructions and it'll work within almost any normal web page even if you're using a bespoke site and we also provide a WordPress plugin).

You'll find the script and how to copy it to your website in your Projects/Settings/How To Install menu option.

When a visitor views the page on your website that contains the script, SightMill generates a small survey panel that's displayed asking the visitor for their feedback.

You can customise the panel and choose when and how to display the survey.

To make sure the survey doesn't get annoying for repeat visitors, you can ensure they only see it once or every few months.