Unable to make https work for subdomain

[NasCode]

Username (e.g. epiz_XXX) or Website URL

subdomain.xyzsecurity.xyz

Error Message

his site can’t provide a secure connection

subdomain.xyzsecurity.xyz sent an invalid response.

• [Try running Windows Network Diagnostics](javascript:diagnoseErrors()).

ERR_SSL_PROTOCOL_ERROR

Other Information

I am trying to use one of infinityfree free SSL certificates. I managed to make it work for the main domain (xyzsecurity.xyz) but did not manage to do it for my subdomain (my subdomain is called subdomain.xyzsecurity.xyz). I tried two different type of SSL certificates but still no success. I am attaching the cname screenshot for your reference. Any help is highly appreciated

[jaikrishna.t]

@NasCode

subdomain.xyzsecurity.xyz

So did you install SSL certificate for this domain in the control panel?

[NasCode]

Hi jaikrishna.t
Thank you for your reply. Does this answer your question or there is soemthing else that you meant?

[KangJL]

Make sure you do this

How to install an SSL certificate

In order to get a padlock in the address bar in your website, you need to install an SSL certificate on your website. This article describes how to do that. If you would rather watch a video, scroll down to the bottom of this article. Installing an SSL certificate The first step to install an SSL certificate is of course to get the SSL certificate. You will need to get your SSL certificate from a certificate vendor of your choice. InfinityFree also provides free SSL certificates in the client …

and this

How to force all traffic to HTTPS

After you’ve enabled SSL for your website, you’ll probably want to redirect all traffic on your website to the https version of your site. There are multiple ways to do that. Let’s compare some commonly used ways. Using script configuration Some scripts (including Wordpress) have a setting which allows you to set your website URL. By changing this URL from http://example.com to https://example.com, the script will probably redirect visitors to the https version of your site. Even if your script…

[NasCode]

That did the trick. Many thanks mate