Considering the user experience, the site will usually be the last to jump. For example, if my website's domain name is botread.com and my homepage is https://www.botread.com, it's easy to use if the web server is iis. Usually, you can just modify the web.config file.
How to redirect iis to the WWW
Add a rule to the site's change directory
<rule name="Redirect to www" stopProcessing="true">
<match url=".*" />
<conditions>
<add input="{HTTP_HOST}" pattern="^botread.com$" />
</conditions>
<action type="Redirect" url="https://www.botread.com/{R:0}" redirectType="Permanent" />
</rule>