HTTP Observatory Report: airindex.eea.europa.eu

Score Rule                           Description
  -25 content-security-policy        Content Security Policy (CSP) header not implemented.
  -20 strict-transport-security      HTTP Strict Transport Security (HSTS) header cannot be recognized.
   -5 subresource-integrity          Subresource Integrity (SRI) not implemented, but all external scripts are loaded over HTTPS.
    0 cross-origin-resource-sharing  Content is not visible via cross-origin resource sharing (CORS) files or headers.
    0 redirection                    Initial redirection is to HTTPS on same host, final destination is HTTPS.
    0 contribute                     Contribute.json isn't required on websites that don't belong to Mozilla.
    0 x-xss-protection               Deprecated X-XSS-Protection header set to "1; mode=block".
    0 cookies                        No cookies detected.
    0 x-content-type-options         X-Content-Type-Options header set to "nosniff".
    0 x-frame-options                X-Frame-Options (XFO) header uses ALLOW-FROM uri directive.
    0 referrer-policy                Referrer-Policy header not implemented.

Score: 50
Grade: C

Full Report Url: https://observatory.mozilla.org/analyze.html?host=airindex.eea.europa.eu