Forçar o redicionamento para https
<system.webServer> <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://seudominio.com.br" redirectType="Permanent" appendQueryString="false" /> </rule> </rules> </rewrite> </system.webServer>