Internet Information Services (IIS) Web sites that use HTTP rely on several important IIS components for their availability. The Windows Process Activation Service (WAS), the World Wide Publishing Service (W3SVC), the HTTP service, all must be running correctly. In addition, a properly running application pool must be available for the Web site’s applications. If any of these components is not functioning, the Web site will not be available.
Check a URL binding
An invalid URL may cause prevent a Web site from starting. To resolve this:
1. Make sure that all URLs specified for your applications are valid and do not break URL normalization (canonicalization) rules. For more information, see RFC 3986.
2. Restart the site.
To restart the site:
Click Start, click Control Panel, and then click Administrative Tools.
Right-click Internet Information Services (IIS) Manager and select Run as administrator.
In the Connections pane, select the Web site that you have to start.
In the Actions pane, click Start to start the site.
You can also start the site using the link below:
Start Web Site