Why?
TLS 1.0 and 1.1 are now officially deprecated due to known security flaws. They have largely disappeared from use across the top one million sites, although a small number of web servers, 0.4 percent, still select one of them during an HTTPS connection.
https://www.f5.com/labs/articles/threat-intelligence/the-2021-tls-telemetry-report
More stats:
https://webtribunal.net/blog/ssl-stats/
On ssl analyser https://www.ssllabs.com/ssltest we getting B instead of A because of support of SSL 1.0 and 1.1 because it simplifies Man in the middle attack.
Why?
TLS 1.0 and 1.1 are now officially deprecated due to known security flaws. They have largely disappeared from use across the top one million sites, although a small number of web servers, 0.4 percent, still select one of them during an HTTPS connection.
https://www.f5.com/labs/articles/threat-intelligence/the-2021-tls-telemetry-report
More stats:
https://webtribunal.net/blog/ssl-stats/
On ssl analyser https://www.ssllabs.com/ssltest we getting B instead of A because of support of SSL 1.0 and 1.1 because it simplifies Man in the middle attack.