I’m a bit confused too (though only through lack of knowledge). When I try: https://www.dogssteppingout.com.au, a triangle with an exclamation mark appears in front of the URL. I’ve attached a screen shot of the message that appears when I click on the triangle and another of the expanded message.
This also seems to be causing a problem when I try to attach the site to its Facebook page. I get a message saying that Facebook can’t connect because the site is insecure. (It will allow me to connect by SSL proxy but this is $29 per month that I am not prepared to pay.)