SSL Certificate is now basic for all website. Google Chrome and few other browser show “Not Secure” when you browse website without SSL Certificate installed on it. Even if you have installed SSL certificate you might receive not secure warning “Your Connection to The Site is Not Fully Secure” which means your website or particular page is showing mixed content to to the user. Mixed contains occurs when your a webpage show both HTTPS(Secured) and HTTP(Non Secure) content over SSL to the browser.
To fix the issue ” Your Connection to The Site is Not Fully Secure ” you need to identify the non secure link on your website code. To identify the non secure content simply view the page source of website and look for non secure link (HTTP). After you have identified the non secure link you need to replace all of them to secure link.
Fix issue on WordPress Website using Plugin.
If you are running a WordPress website, you can use the WP Force SSL plugin. You can download this plugin from here-> WP Force SSL Download.
I hope this will be helpful, please contact us if you have issue regarding this.
Also Read -> HOW TO REDIRECT HTTP TO HTTPS