[b]"What exactly do HTTP headers do, and why should I care?"[/b] or [b]"Can someone explain what HTTP headers do i

Bro, http headers do SO MUCH. They’re like the secret sauce of the web.

Want to block clickjacking? There’s a header for that (`X-Frame-Options`). Need to speed up your site? `Cache-Control`’s got your back.

They’re not optional—they’re how the web stays fast and secure. Check out https://securityheaders.com/ to see how well a site’s using ’em.