HSTSConfig

Allows you to add custom directives supported by a specific user agent.

Specifies the includeSubDomains directive, which applies this policy to any subdomains as well.

Specifies how long (in seconds) the client should keep the host in a list of known HSTS hosts:

Specifies the preload HSTS directive, which allows you to include your domain name in the HSTS preload list.

Duration to tell the client to keep the host in a list of known HSTS hosts.