To view meta tag information on a current site simply right click on any page of and also and select "view page source" from the drop down menu.
You can use Google Analytics for this purpose, or maybe accurately, Let's consider google adsense. For starters, you can start by the referral scandal. https://zomi.net/read-blog/32585_why-your-squarespace-site-needs-professional-seo-right-now.html