Verify HTTPS encryption and critical HTTP security headers including HSTS, CSP, X-Frame-Options, and Referrer-Policy. 100% free web diagnostics by AiMAEditz.
Verify HTTPS encryption and critical HTTP security headers including HSTS, CSP, X-Frame-Options, and Referrer-Policy.
HSTS instructs browsers to connect exclusively via secure HTTPS connections, preventing SSL-stripping attacks, cookie hijacking, and inadvertent insecure HTTP requests.
CSP specifies authorized sources of executable scripts, stylesheets, and images, drastically reducing Cross-Site Scripting (XSS) and malicious data injection vulnerabilities.
X-Frame-Options (or CSP frame-ancestors) prevents third-party sites from embedding your website inside invisible iframes to intercept user clicks or keystrokes.
strict-origin-when-cross-origin is the modern best practice. It sends the full URL to same-origin requests, only the domain origin across HTTPS, and zero referrer data to insecure HTTP.
These headers reveal exact server software and backend versions, giving attackers valuable reconnaissance to target known framework vulnerabilities.
It prevents browsers from MIME-sniffing a response away from the declared Content-Type, neutralizing drive-by script execution disguised as images or text files.
Permissions-Policy allows developers to selectively restrict browser hardware APIs such as camera, microphone, geolocation, and payment request in the user browser.
HttpOnly blocks client-side JavaScript access to prevent token theft via XSS, Secure ensures cookies travel solely over HTTPS, and SameSite guards against Cross-Site Request Forgery (CSRF).
While HTTPS is an explicit ranking factor, strong security headers prevent malware infections, defacements, and browser security warnings that devastate organic traffic.
Implement HSTS with preload, define a robust CSP policy, enable X-Content-Type-Options: nosniff, set X-Frame-Options: SAMEORIGIN, and configure Referrer-Policy appropriately.