F5 Big IP HSTS

set it for a redirect

HTTP::respond 301 Location "https://www.example.com[HTTP::uri]" Strict-Transport-Security "max-age=31536000"

default { HTTP::respond 301 Location "https://www.example.com[HTTP::uri]" Strict-Transport-Security "max-age=31536000"; persist none }

https://hstspreload.org/

https://stackoverflow.com/questions/42866025/do-i-need-to-enable-hsts-in-addition-to-forcing-https-in-htaccess

https://support.f5.com/csp/article/K68657325

nmap -p 443 --script http-security-headers 10.x.x.y

NGINX Example -

# Security headers
add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload";
add_header X-Frame-Options DENY;
add_header X-Content-Type-Options nosniff;
add_header Content-Security-Policy "default-src 'self' www.google-analytics.com ajax.googleapis.com www.google.com google.com gstatic.com www.gstatic.com connect.facebook.net facebook.com;";
add_header X-XSS-Protection "1; mode=block";
add_header Referrer-Policy "origin";

https://serverfault.com/questions/874936/adding-hsts-to-nginx-config