Hi, 

I am looking for a way to get a report that shows number of unique users hit a certain page. It would also be nice if I can have total page views in the report as well. Is this possible with SharePoint online?

thanks 

You can use Javascript Object model scripts on the page to log the required entries into a new SharePoint list and get the required reports from there.

Hi

you need to Configure audit settings for a site collection.

https://community.office365.com/en-us/f/154/t/207149

https://support.office.com/en-ca/article/Configure-audit-settings-for-a-site-collection-a9920c97-38c0-44f2-8bcb-4cf1e2ae22d2

http://anthony-verschraegen.blogspot.in/2013/04/sharepoint-2013-configuring-audit.html