Help me implement the script on my site!

Hey all,

I have no clue, what so ever, as to where I have to put this script. Can you please direct me to the right place? It must be placed in the bottom of the html-code of every page.

<script src""></script>

The page I am referring to is this:

Thanks in advance!

Hello there,

I hope you are doing well today.

It would be best to go to Appearance > Widgets and paste this is a text widget, that is the easiest way to use it.

Best Regards,