HTTP Strict Transport Security (HSTS) is enabled.
It is possible to also verify HSTS by using the Linux curl command as follows:
# curl -s -k -D- https://<pamserver> | grep -i Strict
Strict-Transport-Security: max-age=31536000; includeSubDomains
If HSTS is enabled, there will be a Strict-Transport-Security header with the 'max-age' returned.
Following has some additional information: