I was asked this about CA-7 Web Client and I am not sure how to verify. Which TLS is it using? What cipher is being used?
Release: ESPSEV99000-11.3-CA-7-Extended Support Plus Component:
Launch Internet Explorer. Enter the URL you wish to check in the browser. Right-click the page or select the Page drop-down menu, and select Properties. In the new window, look for the Connection section. This will describe the version of TLS or SSL used. This should work if you are using a trusted certificate.
For Google Chrome:
Open Google Chrome. Click Alt F and select Settings. Scroll down and select Show advanced settings... Scroll down to the System section and click on Open proxy settings... Select the Advanced tab. Scroll down to Security category, manually check the option box for Use TLS 1.1 and Use TLS 1.2. Click OK.
You can do the the same thing under IE clicking the "gear" icon on the upper right side of the screen and selecting Internet Options.
Finally, if you only want to use TLS 1.2, update the install/apache-tomcat-8.5.34/conf/server.xml file and update the sslEnabledProtocols to use only "+TLSv1.2"