<%SFNB_RESE123LLER_BRA123ND_NAME%> Windows servers support IIS URL Rewrite module. You can make use of this module to automatically redirect your visitors from HTTP to HTTPS.
Setting the HTTPS Redirection
Step 1: Verify Digital Certificate Installation.
Ensure that the Digital Certificate is properly installed on your Hosting Order, and the site is resolving on https://yourdomainname.com.
Your site will work on https://yourdomainname.com or https://www.yourdomainname.com or https://subdomain.yourdomainname.com, depending on the Common Name for which you had the certificate issued. Resolving HTTPS on anything other than this Common Name would result in a certificate name mismatch error.
Step 2: Add Redirection.
Create a web.config file under the site's directory and add the following lines to it. In case there already exists a web.config in your site's directory, carefully edit it to add these lines
<xml version="1.0"?>
<configuration>
<system.webServer>
<rewrite>
<rules>
<rule name="Redirect to HTTPS" stopProcessing="true">
<match url="(.*)" />
<conditions>
<add input="{HTTPS}" pattern="^OFF$" />
</conditions>
<action type="Redirect" url="https://<common_name>/{R:1}" redirectType="Permanent" />
</rule>
</rules>
</rewrite>
</system.webServer>
</configuration>
<common_name> needs to be replaced by the Common Name for which the Digital Certificate is issued.