How many sites can I add to my dashboard?

When you first open SEMrush, you will be redirected to the Dashboard. From here you can generate a quick analysis of any given domain.

Enter a domain name and check out updated numbers for that website’s organic and paid digital traffic. You can add up to 15 domains to this list. 

If you try to add any more, you will see the results, however, once the page is refreshed, you will be left with the initial 15 domains you have entered.