Sucuri Recommendations Are False

Hello,

The plugin dashboard shows this message about recommendations:

Recommendations

• Security Header: X-Frame-Options
  We did not find the recommended security header for ClickJacking Protection on your site.
• Security Header: X-Content-Type-Options nosniff
  We did not find the recommended security header to prevent Content Type sniffing on your site.
• Security Header: Strict-Transport-Security
  We did not find the recommended security header Strict-Transport-Security on your site.

I have these security headers enabled and for some reason, the plugin is now saying it doesn’t find them enabled. Not sure if this happened after the last update. Anyway, I confirmed that they are enabled by inspecting my website by using browser dev tools, as well as, using securityheaders.com.