ASP.Net - Enable GZip Compression

Enable GZip Compression By using Web.Config File

Past the below code inside the Configuration tag

<!-- Enabling Compression Starts Here -->

<system.webServer>

    <httpCompression directory="%SystemDrive%\inetpub\temp\IIS Temporary Compressed Files">

        <scheme name="gzip" dll="%Windir%\system32\inetsrv\gzip.dll"/>

        <dynamicTypes>

            <add mimeType="text/*" enabled="true"/>

            <add mimeType="message/*" enabled="true"/>

            <add mimeType="application/javascript" enabled="true"/>

            <add mimeType="*/*" enabled="false"/>

        </dynamicTypes>

        <staticTypes>

            <add mimeType="text/*" enabled="true"/>

            <add mimeType="message/*" enabled="true"/>

            <add mimeType="application/javascript" enabled="true"/>

            <add mimeType="*/*" enabled="false"/>

        </staticTypes>

    </httpCompression>

    <urlCompression doStaticCompression="true" doDynamicCompression="true"/>

</system.webServer>

<!-- Compression Ends Here -->

Enable GZip Compression By using Global.asax

Past the below code inside the Global.asax File

private const string GZIP = "gzip";

private const string DEFLATE = "deflate";

void Application_ReleaseRequestState(object sender, EventArgs e)

{

    HttpApplication app = (HttpApplication)sender;

    if (app.Context.CurrentHandler is Page && app.Request["HTTP_X_MICROSOFTAJAX"] == null)

    {

        if (IsEncodingAccepted(DEFLATE))

        {

            app.Response.Filter = new System.IO.Compression.DeflateStream(app.Response.Filter, System.IO.Compression.CompressionMode.Compress);

            SetEncoding(DEFLATE);

        }

        else if (IsEncodingAccepted(GZIP))

        {

            app.Response.Filter = new System.IO.Compression.GZipStream(app.Response.Filter, System.IO.Compression.CompressionMode.Compress);

            SetEncoding(GZIP);

        }

    }

}

private static void SetEncoding(string encoding)

{

    HttpContext.Current.Response.AppendHeader("Content-encoding", encoding);

}