Security Report Summary
R
Redirect: Click here to follow the redirect to https://posteo.de/en.
Site: https://posteo.de/
IP Address: 2a05:bc0:1000:80::168:1
Report Time: 28 May 2024 07:28:02 UTC
Headers:
  • X-Frame-Options
  • Referrer-Policy
  • X-Content-Type-Options
  • Content-Security-Policy
  • Permissions-Policy
  • Strict-Transport-Security
Warning: Grade capped at A, please see warnings below.
Advanced:
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Warnings
Content-Security-PolicyThis policy contains 'unsafe-inline' which is dangerous in the script-src directive. This policy contains 'unsafe-eval' which is dangerous in the script-src directive. This policy contains 'unsafe-eval' which is dangerous in the style-src directive.
Raw Headers
HTTP/1.1302 Found
dateTue, 28 May 2024 07:28:01 GMT
serverApache
cache-controlno-cache, no-store, max-age=0, must-revalidate
pragmano-cache
expiresFri, 01 Jan 1990 00:00:00 GMT
set-cookie_mailservice_session=BAh7BzoPc2Vzc2lvbl9pZCIlMzBjNWM0NTAxZGJiZDI1Yjc0NGNiYjBjZjk2NGYxN2E6D2V4cGlyZXNfYXRsKwcB2VZm--05c0d24133e93d908d8195825344bae2ad51f433; path=/; HttpOnly; SameSite=Lax; secure
x-frame-optionsSAMEORIGIN
frame-optionsSAMEORIGIN
referrer-policyno-referrer
content-length86
status302 Found
x-content-type-optionsnosniff
content-security-policyconnect-src https://api.posteo.de https://payment.posteo.de https://cdn.posteo.de wss://posteo.de 'self'; child-src 'self'; font-src 'self' data:; form-action https://www.paypal.com https://hooks.stripe.com 'self' data:; frame-ancestors 'self'; frame-src 'self' blob:; img-src data: *; manifest-src 'self'; media-src 'self' https://cdn.posteo.de; object-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-eval' 'unsafe-inline'; default-src 'none'; reflected-xss block; referrer no-referrer;
permissions-policyaccelerometer=(), ambient-light-sensor=(), autoplay=(), battery=(), camera=(), cross-origin-isolated=(), display-capture=(), document-domain=(), encrypted-media=(), execution-while-not-rendered=(), execution-while-out-of-viewport=(), fullscreen=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), midi=(), navigation-override=(), payment=(), picture-in-picture=(), publickey-credentials-get=(), screen-wake-lock=(), sync-xhr=(), usb=(), web-share=(), xr-spatial-tracking=()
locationhttps://posteo.de/en
content-typetext/html; charset=utf-8
strict-transport-securitymax-age=31536000; includeSubDomains; preload
expect-ctenforce, max-age=300
Upcoming Headers
Cross-Origin-Embedder-PolicyCross-Origin Embedder Policy allows a site to prevent assets being loaded that do not grant permission to load them via CORS or CORP.
Cross-Origin-Opener-PolicyCross-Origin Opener Policy allows a site to opt-in to Cross-Origin Isolation in the browser.
Cross-Origin-Resource-PolicyCross-Origin Resource Policy allows a resource owner to specify who can load the resource.
Additional Information
serverThis Server header seems to advertise the software being run on the server but you can remove or change this value.
set-cookieThere is no Cookie Prefix on this cookie.
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.
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.
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".
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. Analyse this policy in more detail. You can sign up for a free account on Report URI to collect reports about problems on your site.
permissions-policyPermissions Policy is a new header that allows a site to control which features and APIs can be used in the browser.
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.
expect-ctExpect-CT will soon be deprecated and can be removed.