如果我创建一个 azure 网站，假设：myname.azurewebsites.net，我可以使用 http ( http://myname.azurewebsites.net) 或 https ( https://myname.azurewebsites.net) 访问它。
这是什么意思？我是否理解正确，基本上我不需要 SSL 证书，因为它默认有一个？
我需要构建一个需要使用 SSL 的 Web 服务。因此我需要购买 ssl 证书和自定义域（不重要）吗？我不需要自定义域，默认域对我来说很好用。那么我可以通过 Azure 提供的 SSL 使用我的服务https://myname.azurewebsites.net吗：（是通配符证书）？
If you need to build a web service that needs to use SSL I highly suggest that you use your own domain and your own SSL certificate (buy one) if you are going in production with it. If you just test/play around - than you can safely use the default provided one.
And you are correct about default provided one - you get a (free) SSL for your azure web site as long as it is only bound to the default XXX.azurewebsites.net domain. However the certificate you get there is a wildcard certificate issued to *.azurewebsites.net. I would not use it if I have to go for a production service!
If you are to use SSL features of Azure Web Sites with your own domain and certificate, check out the Pricing and requirement pages. There are important things to note!