Web server changed name, url return wrong host name

finalUrl = "https://" + Request.Url.Host + "/home.aspx";

https://server0/home.aspx

Host stackoverflow.com
User-Agent Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.5) Gecko/2008120122 Firefox/3.0.5 (.NET CLR 3.5.30729)
Accept text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
...

string finalUrl = "~/home.aspx";
Response.Redirect(finalUrl);