Hello Estefiv89, Technical information about the TLS 1.2 requirements is available here: English: https://www.paypal-notice.com/en/TLS-1.2-and-HTTP1.1-Upgrade/
Spanish: https://www.paypal-notice.com/es/TLS-1.2-and-HTTP1.1-Upgrade/
The quickest thing you should verify is whether applications on your web servers are capable of connecting to https://tlstest.paypal.com and receiving the "PayPal_Connection_OK" response This can be tested from the command line: $ curl https://tlstest.paypal.com PayPal_Connection_OK But if the language or development environment of your web servers' applications is different, you will need to test at the application level, from application code, in order to be completely sure. Some more specific technical information for various languages can be found here: https://github.com/paypal/TLS-update
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