If you’ve been thinking about adding CAPTCHA to your WordPress website (or have recently installed our amazing CAPTCHA 4WP plugin), you’ll undoubtedly have come across the many different versions and iterations of the word CAPTCHA.

CAPTCHA is one of the best tools WordPress administrators and website owners have at their disposal in their fight against spam, such as spam comments and fake user registrations. Just like every other tool, sometimes it needs to be sharpened and serviced.

Most modern browsers support a variety of HTTP security headers to improve the security of your WordPress website, better protect your visitors from classes of browser attacks such as clickjacking, cross-site scripting, and other common attacks, and even improve your site’s visitors’ privacy online.