将HTTPS重定向到HTTP（无SSL证书）

Question

I was using a SSL Certificate for my website and ranked it highly in search engines. Now the SSL has expired and I no longer want to use it, is there some way to redirect my users to HTTP instead of HTTPS?
What I've tried so far is to make a personal certificate and then added a rule to transfer the users in web.config using this code

<rewrite>
    <rules>
        <rule name="Redirect to HTTP" stopProcessing="true">
            <match url="(.*)" />
            <conditions>
                <add input="{HTTPS}" pattern="^ON$" />
            </conditions>
            <action type="Redirect" url="http://{HTTP_HOST}/{R:1}" redirectType="Permanent" />
        </rule>
    </rules>
</rewrite>

This resulted in an error page saying my connection is not safe (Becuse of the bad SSL).

Answer 1

Without a certificate, no SSL/TLS connection can be made. Then how can you send a HTTP redirect response with no request over a connection? Thus, it is technically impossible to do so.

You can probably generate a self signed certificate temporarily, which means if the users accept this certificate, they can at least still visit your site, and be redirected by you to HTTP. I am not sure if a self signed certificate works for Google search spider or any other search engine though.

If possible, switch to a service provider such as CloudFlare, who offers free HTTPS certificates. That can resolve your issue without you paying a CA.