If you have a website hosted on squarespace, please take a moment to check your settings. No, nothing is wrong but you might want to enable https support now that it is available at no extra cost.
So, starting today, we’re proud to offer free SSL on all Squarespace websites. https://blog.squarespace.com/blog/were-securing-millions-of-websites-with-ssl
There are tons of benefits to doing this not least of which is a likely boost in search result rankings
https://security.googleblog.com/2014/08/https-as-ranking-signal_6.html. What are you waiting for?