web.config

<?xml version="1.0" encoding="UTF-8"?>
<configuration>

    <appSettings>
        <clear />
    </appSettings>

    <system.web>
        <httpRuntime maxRequestLength="102400" maxUrlLength="102400" maxQueryStringLength="10000" requestValidationType="System.Web.Util.RequestValidator" />

        <httpModules>
            <clear />
        </httpModules>

        <httpHandlers>
            <clear />
        </httpHandlers>
    </system.web>

    <system.webServer>
        <validation validateIntegratedModeConfiguration="false" />
        <modules runAllManagedModulesForAllRequests="true">
            <remove name="ClaimsPrincipalHttpModule" />
            <remove name="SitefinityClaimsAuthenticationModule" />
            <remove name="Sitefinity" />
            <remove name="SessionAuthenticationModule" />
            <remove name="ScriptModule" />
            <remove name="RadUploadModule" />
            <remove name="SitefinityAnalyticsModule" />
        </modules>
        <handlers>
            <remove name="xamlx-64" />
            <remove name="xamlx-script" />
            <remove name="svc-64" />
            <remove name="svc-script" />
            <remove name="xamlx" />
            <remove name="svc" />
            <remove name="ScriptHandlerFactory" />
            <remove name="ScriptHandlerFactoryAppServices" />
            <remove name="ScriptResource" />
            <remove name="WildCard" />
            <remove name="WildCard32" />
            <remove name="Telerik.Web.UI.DialogHandler" />
            <remove name="Telerik.RadUploadProgressHandler" />
            <remove name="Telerik.Sitefinity.FilesDownloadHandler" />
            <remove name="Telerik.Sitefinity.ExportSubscribersHttpHandler" />
            <remove name="Telerik.Sitefinity.LibrariesRadUploadHandler" />
            <remove name="Telerik.Sitefinity.Html5UploadHandler" />
            <remove name="Telerik.Sitefinity.ThumbnailUploadHandler" />
            <remove name="Telerik.Sitefinity.AsyncImageUploadHandler" />
            <remove name="Telerik.Sitefinity.AsyncFileUploadHandler" />
            <remove name="Telerik.Sitefinity.AsyncToolsetXmlUploadHandler" />
            <remove name="Telerik.Web.UI.SpellCheckHandler" />
            <remove name="Telerik_Web_UI_WebResource_axd" />
            <remove name="Telerik_Web_UI_DialogHandler_aspx" />
            <remove name="Telerik.ReportViewer.axd_*" />
        </handlers>

        <rewrite>
            <rules>
                <clear />

				<rule name="Redirect to https" stopProcessing="true">
					<match url=".*" />
					<conditions>
						<add input="{HTTPS}" pattern="off" ignoreCase="true" />
					</conditions>
					<action type="Redirect" url="https://{HTTP_HOST}{REQUEST_URI}" redirectType="Permanent" appendQueryString="false" />
				</rule>

                <rule name="index" enabled="true" stopProcessing="true">
                    <match url="^/?$" />
                    <action type="Redirect" url="introduction" redirectType="Permanent" />
                </rule>
                <rule name="copyright" enabled="true" stopProcessing="true">
                    <match url="^copyright" />
                    <action type="Redirect" url="https://www.progress.com/legal/documentation-copyright" redirectType="Permanent" />
                </rule>
                <rule name="gdpr" enabled="true" stopProcessing="true">
                    <match url="^gdpr" />
                    <action type="Redirect" url="https://www.progress.com/legal/privacy-policy" redirectType="Permanent" />
                </rule>
                <rule name="installation" enabled="true" stopProcessing="true">
                    <match url="^installation/(.*)$" />
                    <action type="Redirect" url="getting-started/installation/{R:1}" redirectType="Permanent" />
                </rule>
                <rule name="jquery-integration" enabled="true" stopProcessing="true">
                    <match url="^general-information/using-jquery/(.*)$" />
                    <action type="Redirect" url="integration/jquery/{R:1}" redirectType="Permanent" />
                </rule>
                <rule name="aspnetmvc-integration" enabled="true" stopProcessing="true">
                    <match url="^mvc/(.*)$" />
                    <action type="Redirect" url="integration/mvc/{R:1}" redirectType="Permanent" />
                </rule>
                <rule name="sharepoint-integration" enabled="true" stopProcessing="true">
                    <match url="^sharepoint/(.*)$" />
                    <action type="Redirect" url="integration/sharepoint/{R:1}" redirectType="Permanent" />
                </rule>
                <rule name="telerik-integration" enabled="true" stopProcessing="true">
                    <match url="^integration-with-other-telerik-products/(.*)$" />
                    <action type="Redirect" url="integration/telerik-products/{R:1}" redirectType="Permanent" />
                </rule>
                <rule name="vs-integration" enabled="true" stopProcessing="true">
                    <match url="^general-information/integration-with-visual-studio/(.*)$" />
                    <action type="Redirect" url="integration/visual-studio/{R:1}" redirectType="Permanent" />
                </rule>
                <rule name="performance" enabled="true" stopProcessing="true">
                    <match url="^general-information/performance/(.*)$" />
                    <action type="Redirect" url="getting-started/performance/{R:1}" redirectType="Permanent" />
                </rule>
                <rule name="style-builder" enabled="true" stopProcessing="true">
                    <match url="^visual-stylebuilder/(.*)$" />
                    <action type="Redirect" url="styling/visual-stylebuilder/{R:1}" redirectType="Permanent" />
                </rule>
                <rule name="theme-builder" enabled="true" stopProcessing="true">
                    <match url="^theme-builder/(.*)$" />
                    <action type="Redirect" url="styling/theme-builder/{R:1}" redirectType="Permanent" />
                </rule>
                <rule name="controlling-visual-appearance" enabled="true" stopProcessing="true">
                    <match url="^general-information/controlling-visual-appearance/(.*)$" />
                    <action type="Redirect" url="styling/controlling-visual-appearance/{R:1}" redirectType="Permanent" />
                </rule>
                <rule name="upgrading-instructions" enabled="true" stopProcessing="true">
                    <match url="^installation/upgrading-instructions/(.*)$" />
                    <action type="Redirect" url="upgrade-compatibility/upgrading-instructions/{R:1}" redirectType="Permanent" />
                </rule>

				<!-- mass broken urls due to docs splitting start -->
				<rule name="ajaxControl-redirect" enabled="true" stopProcessing="true">
					<match url="^controls/ajax/radajaxloadingpanel/(.*)$" />
					<conditions>
						<add input="{REQUEST_FILENAME}" />
					</conditions>
					<action type="Redirect" url="controls/ajaxloadingpanel/{R:1}" redirectType="Permanent" />
				</rule>

				<rule name="ajaxControl1-redirect" enabled="true" stopProcessing="true">
					<match url="^controls/ajax/radajaxpanel/(.*)$" />
					<conditions>
						<add input="{REQUEST_FILENAME}" />
					</conditions>
					<action type="Redirect" url="controls/ajaxpanel/{R:1}" redirectType="Permanent" />
				</rule>

				<rule name="ajaxControl2-redirect" enabled="true" stopProcessing="true">
					<match url="^controls/ajax/radajaxmanager/(.*)$" />
					<conditions>
						<add input="{REQUEST_FILENAME}" />
					</conditions>
					<action type="Redirect" url="controls/ajaxmanager/{R:1}" redirectType="Permanent" />
				</rule>

				<rule name="ajaxControlCommon-redirect" enabled="true" stopProcessing="true">
					<match url="^controls/ajax/(.*)$" />
					<conditions>
						<add input="{REQUEST_FILENAME}" />
					</conditions>
					<action type="Redirect" url="controls/ajaxmanager/{R:1}" redirectType="Permanent" />
				</rule>

				<rule name="inputManagerCommon-redirect" enabled="true" stopProcessing="true">
					<match url="^controls/input/radinputmanager/(.*)$" />
					<conditions>
						<add input="{REQUEST_FILENAME}" />
					</conditions>
					<action type="Redirect" url="controls/inputmanager/{R:1}" redirectType="Permanent" />
				</rule>

				<rule name="inputTextBoxCommon-redirect" enabled="true" stopProcessing="true">
					<match url="^controls/input/radtextbox/(.*)$" />
					<conditions>
						<add input="{REQUEST_FILENAME}" />
					</conditions>
					<action type="Redirect" url="controls/textbox/features/{R:1}" redirectType="Permanent" />
				</rule>

				<rule name="inputCommon-redirect" enabled="true" stopProcessing="true">
					<match url="^controls/input/(.*)$" />
					<conditions>
						<add input="{REQUEST_FILENAME}" />
					</conditions>
					<action type="Redirect" url="controls/textbox/{R:1}" redirectType="Permanent" />
				</rule>

				<rule name="misspelledMaskedTextboxCommon-redirect" enabled="true" stopProcessing="true">
					<match url="^controls/maksedtextbox/(.*)$" />
					<conditions>
						<add input="{REQUEST_FILENAME}" />
					</conditions>
					<action type="Redirect" url="controls/maskedtextbox/{R:1}" redirectType="Permanent" />
				</rule>




				<!-- Document Processing Redirects Start -->
				<rule name="pdfprocessing-redirect" enabled="true" stopProcessing="true">
                    <match url="pdfprocessing/((.*)[^(overview(?\.html))]).*" />
					<conditions>
						<add input="{REQUEST_FILENAME}" />
					</conditions>
                    <action type="Redirect" url="https://docs.telerik.com/devtools/document-processing/libraries/rad{R:0}" redirectType="Permanent" />
                </rule>
				<rule name="wordsprocessing-redirect" enabled="true" stopProcessing="true">
                    <match url="wordsprocessing/((.*)[^(overview(?\.html))]).*" />
					<conditions>
						<add input="{REQUEST_FILENAME}" />
					</conditions>
                    <action type="Redirect" url="https://docs.telerik.com/devtools/document-processing/libraries/rad{R:0}" redirectType="Permanent" />
                </rule>
				<rule name="spreadprocessing-redirect" enabled="true" stopProcessing="true">
                    <match url="spreadprocessing/((.*)[^(overview(?\.html))]).*" />
					<conditions>
						<add input="{REQUEST_FILENAME}" />
					</conditions>
                    <action type="Redirect" url="https://docs.telerik.com/devtools/document-processing/libraries/rad{R:0}" redirectType="Permanent" />
                </rule>
				<rule name="spreadstreamprocessing-redirect" enabled="true" stopProcessing="true">
                    <match url="spreadstreamprocessing/((.*)[^(overview(?\.html))]).*" />
					<conditions>
						<add input="{REQUEST_FILENAME}" />
					</conditions>
                    <action type="Redirect" url="https://docs.telerik.com/devtools/document-processing/libraries/rad{R:0}" redirectType="Permanent" />
                </rule>
					<rule name="ziplibrary-redirect" enabled="true" stopProcessing="true">
                    <match url="ziplibrary/((.*)[^(overview(?\.html))]).*" />
					<conditions>
						<add input="{REQUEST_FILENAME}" />
					</conditions>
                    <action type="Redirect" url="https://docs.telerik.com/devtools/document-processing/libraries/rad{R:0}" redirectType="Permanent" />
                </rule>
				<!-- Document Processing Redirects End -->

                {% for page in site.redirect_pages %}
                    {% for prev_url in page.previous_url %}
                        <rule name="redirect-{{ prev_url | replace: '/', '-' }}" enabled="true" stopProcessing="true">
                            <match url="^{{ prev_url }}$" />
                            <action type="Redirect" url="{{ page.url | remove_first: '/' | replace: '.html', '' }}" />
                        </rule>
                        {% endfor %}
                {% endfor %}
                <rule name="Redirecting .html ext" enabled="true">
                  <match url="^(.*)[.]html$"/>
                  <conditions logicalGrouping="MatchAny">
                    <add input="{URL}" pattern="(.*)[.]html$"/>
                  </conditions>
                  <action type="Redirect" url="{ToLower:{R:1}}"/>
                </rule>

                <rule name="add_html_extension" enabled="true" stopProcessing="true">
                    <match url="(.*)" />
                    <conditions logicalGrouping="MatchAll">
                        <add input="{REQUEST_FILENAME}.html" matchType="IsFile" />
                    </conditions>
                    <action type="Rewrite" url="{R:1}.html" />
                </rule>
            </rules>
        </rewrite>
      	<httpProtocol>
            <customHeaders>
                <add name="Cache-Control" value="no-cache" />
                <add name="Content-Security-Policy" value="frame-ancestors 'self'; upgrade-insecure-requests" />
                <add name="Referrer-Policy" value="strict-origin-when-cross-origin" />
                <add name="Strict-Transport-Security" value="max-age=31536000; includeSubDomains" />
                <add name="X-Content-Type-Options" value="nosniff" />
                <add name="X-Frame-Options" value="SAMEORIGIN" />
                <add name="X-XSS-Protection" value="1; mode=block" />
            </customHeaders>
        </httpProtocol>
        <staticContent>
            <remove fileExtension=".json" />
            <mimeMap fileExtension=".json" mimeType="application/json" />
            <remove fileExtension=".woff" />
            <mimeMap fileExtension=".woff" mimeType="application/x-font-woff" />
        </staticContent>
        <httpErrors errorMode="Custom" defaultResponseMode="File" >
            <remove statusCode="403" />
            <remove statusCode="404" />
            <error statusCode="403" path="40x.html" />
            <error statusCode="404" path="40x.html" />
       </httpErrors>
    </system.webServer>
    <location path="api">
        <system.webServer>
            <security>
             <requestFiltering>
                <fileExtensions>
                   <remove fileExtension=".browser" />
                </fileExtensions>
             </requestFiltering>
            </security>
        </system.webServer>
    </location>
</configuration>