What's the best method in ASP.NET to obtain the current domain?
Same answer as MattMitchell's but with some modification. This checks for the default port instead.
Edit: Updated syntax and using
Request.Url.Authority
as suggested
$"{Request.Url.Scheme}{System.Uri.SchemeDelimiter}{Request.Url.Authority}"
As per this link a good starting point is:
Request.Url.Scheme + System.Uri.SchemeDelimiter + Request.Url.Host
However, if the domain is http://www.domainname.com:500 this will fail.
Something like the following is tempting to resolve this:
int defaultPort = Request.IsSecureConnection ? 443 : 80;
Request.Url.Scheme + System.Uri.SchemeDelimiter + Request.Url.Host
+ (Request.Url.Port != defaultPort ? ":" + Request.Url.Port : "");
However, port 80 and 443 will depend on configuration.
As such, you should use IsDefaultPort
as in the Accepted Answer above from Carlos Muñoz.
Request.Url.GetLeftPart(UriPartial.Authority)
This is included scheme.