If you are receiving a 404 error while accessing your custom domain, as shown in Figure 1, then you are most likely missing the link between your Windows Azure Web Site configuration and your custom domain.
Before we move to the solution, you might want to also check these descriptions of how to map a custom domain to a Windows Azure Web Site found here and here. Make sure you have followed all those instruction carefully.
To resolve this issue, access the Windows Azure management console here and click on the WAWS you are trying to link the custom domain to. Once there, click the CONFIGURE link as illustrated in Figure 2.
Figure 2, the CONFIGURE link for a given WAWS
Scroll down until you find the Manage Domains button as shown in Figure 3.
Figure 3, Manage Custom domains for a Windows Azure Web Site
Clicking on the Manage Domains button will render a pop-up box that resembles Figure 4.
Figure 4, Manage custom domains for a Windows Azure Web Site
Enter in your custom domain and the 404 issue should be resolved in a number of seconds. If the issue remains or you get a pop-up error stating “The DNS record for ‘’ that points to ‘’ could not be located”, go back and review the entire configuration using the 2 links provided at the beginning of this article.
You might also want to check the WAWS forums for additional help location here.