So, you possible have updated your application server configuration to support TLS 1.2 and you wanted to make sure that your website is now compatible with TLS 1.2. Or you want to test a website whether it supports TLS 1.2.
Simple and manual way of doing it
Simple way of checking it by disabling all SSL and TLS security protocols except TLS 1.2 in your browser and then browse the website to see whether it works or not.
- Open Internet Explorer
- From the menu bar, click Tools > Internet Options > Advanced tab Or press alt+x+o
- Scroll down to Security category, manually check the option box for Use TLS 1.2 and uncheck other options like SSL 2.0, SSL 3.0, TLS 1.0, TLS 1.1
- Click OK
- Close your browser and start again
- Write your website address in the address bar to see whether it works or not.
If it works then yes, your website is compatible with TLS 1.2. If not, then contact with your website's hosting supplier/application development team to configure it correctly.
Best way of getting this report using SSL Lab Test
It is not just the TLS 1.2, you also have to see available cipher suites in your application server to check whether it has any weak ciphers available or not. For detailed and complete verification of your website regarding this another way of doing it by using SSL Lab test.
Then enter your website address
It will take some time to validate but it will show you detailed report on your current application configuration and what are TLS protocols are on, what are the cipher suites are available etc. I would recommend this step to be done for better report.