Get Url - Protocol/Schema, Domain and (if applicable) Port

From goo.gl/WfuVV and goo.gl/AYp9v

Request.Url.GetLeftPart(UriPartial.Authority)

It will return a string like the following

"http://localhost:51528"

Requesr.Url properties and sample values:

Request.Url
{http://localhost:51528/Account/SendForgotPasswordEmail?email=jon@connor.com}
    AbsolutePath: "/Account/SendForgotPasswordEmail"
    AbsoluteUri: "http://localhost:51528/Account/SendForgotPasswordEmail?email=jon@connor.com"
    Authority: "localhost:51528"
    DnsSafeHost: "localhost"
    Fragment: ""
    Host: "localhost"
    HostNameType: Dns
    IsAbsoluteUri: true
    IsDefaultPort: false
    IsFile: false
    IsLoopback: true
    IsUnc: false
    LocalPath: "/Account/SendForgotPasswordEmail"
    OriginalString: "http://localhost:51528/Account/SendForgotPasswordEmail?email=jon@connor.com"
    PathAndQuery: "/Account/SendForgotPasswordEmail?email=jon@connor.com"
    Port: 51528
    Query: "?email=jon@connor.com"
    Scheme: "http"
    Segments: {string[3]}
    UserEscaped: false
    UserInfo: ""