This config will redirect every request to https://www.domain.com
<configuration>
<system.webServer>
<rewrite>
<rules>
<rule name="Redirect to www" stopProcessing="true">
<match url="(.*)" />
<conditions>
<add input="{HTTPS}" pattern="off" />
</conditions>
<action type="Redirect" url="https://www.domain.com/{R:1}" redirectType="Permanent" />
</rule>
</rules>
</rewrite>
</system.webServer>
</configuration>
<system.webServer>
<rewrite>
<rules>
<rule name="Redirect to www" stopProcessing="true">
<match url="(.*)" />
<conditions>
<add input="{HTTPS}" pattern="off" />
</conditions>
<action type="Redirect" url="https://www.domain.com/{R:1}" redirectType="Permanent" />
</rule>
</rules>
</rewrite>
</system.webServer>
</configuration>