Security Report Summary
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Site: https://mailum.org/de
IP Address: 2a02:c207:2036:7046::1
Report Time: 06 Aug 2020 10:17:43 UTC
Headers:
  • Strict-Transport-Security
  • X-Frame-Options
  • X-Content-Type-Options
  • Referrer-Policy
  • Content-Security-Policy
  • Feature-Policy
Supported By
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Raw Headers
HTTP/1.1200 OK
Servernginx/1.19.1
DateThu, 06 Aug 2020 10:17:42 GMT
Content-Typetext/html;charset=UTF-8
Content-Length25069
Connectionkeep-alive
X-Powered-ByPHP/7.4.8
Set-Cookiemailum-40d1b2d=bafdac9b6708c594890f451eed95dc5b; expires=Thu, 06-Aug-2020 10:47:42 GMT; Max-Age=1800; path=/; domain=mailum.org; secure; HttpOnly
ExpiresThu, 13 Aug 2020 10:17:42 GMT
Cache-Controlmax-age=604800
Pragmano-cache
Set-Cookiemailum-40d1b2d=bafdac9b6708c594890f451eed95dc5b; expires=Thu, 06-Aug-2020 10:47:42 GMT; Max-Age=1800; path=/; domain=mailum.org; secure; HttpOnly
Content-Encodingnone
Strict-Transport-Securitymax-age=31536000
X-Frame-OptionsSAMEORIGIN
X-Xss-Protection1; mode=block
X-Content-Type-Optionsnosniff
Referrer-Policyno-referrer
Missing Headers
Content-Security-PolicyContent Security Policy is an effective measure to protect your site from XSS attacks. By whitelisting sources of approved content, you can prevent the browser from loading malicious assets.
Feature-PolicyFeature Policy is a new header that allows a site to control which features and APIs can be used in the browser.
Upcoming Headers
Expect-CTExpect-CT allows a site to determine if they are ready for the upcoming Chrome requirements and/or enforce their CT policy.
Additional Information
ServerThis Server header seems to advertise the software being run on the server but you can remove or change this value.
X-Powered-ByX-Powered-By can usually be seen with values like "PHP/5.5.9-1ubuntu4.5" or "ASP.NET". Trying to minimise the amount of information you give out about your server is a good idea. This header should be removed or the value changed.
Strict-Transport-SecurityHTTP Strict Transport Security is an excellent feature to support on your site and strengthens your implementation of TLS by getting the User Agent to enforce the use of HTTPS.
X-Frame-OptionsX-Frame-Options tells the browser whether you want to allow your site to be framed or not. By preventing a browser from framing your site you can defend against attacks like clickjacking.
X-Xss-ProtectionX-XSS-Protection sets the configuration for the XSS Auditor built into older browser. The recommended value was "X-XSS-Protection: 1; mode=block" but you should now look at Content Security Policy instead.
X-Content-Type-OptionsX-Content-Type-Options stops a browser from trying to MIME-sniff the content type and forces it to stick with the declared content-type. The only valid value for this header is "X-Content-Type-Options: nosniff".
Referrer-PolicyReferrer Policy is a new header that allows a site to control how much information the browser includes with navigations away from a document and should be set by all sites.