You have web application settings in the
Suppose you have a setting in web.config
<add key="ApplicationName" value="EzzyLearning.com" />
You can read setting in aspx or ascx file as follows:
string applicationName = WebConfigurationManager.AppSettings["ApplicationName"];
Note: You need to add the System.Configuration assembly reference in your project to use the above code. and you need to import the System.Web.Configuration namespace on topic of your code.