You’ve probably heard about SSL Certificates. SSL stands for Secure Sockets Layer. Technically the SSL certificate is nothing more than a small data file that digitally connects a cryptographic key to a particular domain on a particular server. SSL is the standard security technology behind encrypting data during the transfer of that data between the user’s computer browsers and the website’s server.
But, have you heard of TLS (Transport Layer Security)? TLS evolved from SSL. It used to be believed that TLS was only marginally more secure than SSL however, we now know that TLS is significantly more secure and fixes many vulnerabilities present in SSL versions 2 and 3. Interestingly – and perhaps a bit confusing, if not misleading – the TLS and SSL terms are still often used interchangeably, even with their significant differences.
Regardless, a properly certified and secure website can be visually verified by looking at the link in your computer’s browser while visiting any website. A secure website will display https:// vs. the standard http://. Additionally, you will also want to see a green padlock next to the https:// link, which ensures that your connection is as secure as possible.
If the padlock is anything but green, it means that there are still portions of the website that have not met ALL of the validation requirements needed to “get the green padlock.” The website may still be secure, but it may not be – or it is not as secure as it could have been by taking the time to resolve any mixed content.
Use this checklist to ensure your domain reflects the Green Padlock after your certificate installation.