The Secure Sockets Layer (SSL) is a commonly-used protocol to manage the security of message transmission on the Internet. SSL (Secure Sockets Layer) uses a program layer located between the Internet’s Hypertext Transfer Protocol (HTTP) and Transport Control Protocol (TCP) layers.
There can be some issues faced by you after an SSL certificate installation for you website. One of the issue can be wherein you may not be able to access your website after a SSL certificate installation.
SSL installation requires a DNS change of your domain A record and thus this error occurs. After a successful SSL certificate installation you might be resolving your domain with the old DNS settings. Normally these changes should take place immediately but there is a possibility to access you website using cached DNS information.
We recommend you to check the website after few hours for the DNS changes to take effect. You will then be able to access your website conveniently without any issues.
Also we suggest you to clear up all your browser’s cache and local DNS cache. If the problem continues, you can contact the support department for your web hosting services provider or the SSL certificate provider for further assistance.