You can use the dashboard for a multitude of functions. See picture below.

For example.

As mentioned before, once your snip is created, you can then add it to your Twitter or Facebook message.

I suggest you create a few of them and test them out. Please note that if your site does NOT use HTTPS, the reader might get a message that your site is not secure. With HTTPS, there are no issues.

I hope this was useful.

Thanks

Pierre