Security Report Summary
A+
Site: https://petri.kutvonen.net/
IP Address: 2a03:b0c0:2:f0::2de:f001
Report Time: 28 Oct 2020 23:06:58 UTC
Headers:
  • Content-Security-Policy
  • Strict-Transport-Security
  • X-Content-Type-Options
  • Referrer-Policy
  • Permissions-Policy
  • X-Frame-Options
Supported By
Probely
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Raw Headers
HTTP/1.1200 OK
DateWed, 28 Oct 2020 23:06:58 GMT
Content-Typetext/html; charset=utf-8
Content-Length9986
Last-ModifiedSun, 25 Oct 2020 09:36:19 GMT
Connectionkeep-alive
Keep-Alivetimeout=90
ETag"5f954713-2702"
ExpiresThu, 29 Oct 2020 23:06:58 GMT
Cache-Controlmax-age=86400
Content-Security-Policydefault-src 'none'; img-src 'self' data:; script-src 'self' https://ajax.googleapis.com; style-src 'self' https://kutvonen.net https://fonts.googleapis.com; font-src 'self' data: https://fonts.gstatic.com https://kutvonen.net; frame-ancestors 'self' https://www.cs.helsinki.fi; base-uri 'self'; form-action 'self'; child-src 'self' https://www.cs.helsinki.fi; upgrade-insecure-requests;
Strict-Transport-Securitymax-age=63072000; includeSubDomains; preload
X-Content-Type-Optionsnosniff
X-XSS-Protection1; mode=block
Referrer-Policysame-origin
Feature-Policygeolocation 'none'; microphone 'none'; camera 'none';
Permissions-Policygeolocation=(), microphone=(), camera=()
Report-To{"group":"default","max_age":31536000,"endpoints":[{"url":"https://kutvonennet.report-uri.com/a/d/g"}],"include_subdomains":true}
Expect-CTmax-age=86400, report-uri="https://kutvonennet.report-uri.com/r/d/ct/reportOnly"
Access-Control-Allow-Originhttps://localhost
X-Frame-Optionsallow-from https://cs.helsinki.fi
Accept-Rangesbytes
Additional Information
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.
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-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".
X-XSS-ProtectionX-XSS-Protection sets the configuration for the XSS Auditor built into older browsers. The recommended value was "X-XSS-Protection: 1; mode=block" but you should now look at Content Security Policy instead.
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.
Feature-PolicyFeature Policy has been renamed to Permissions Policy, see the details here.
Permissions-PolicyPermissions Policy is a new header that allows a site to control which features and APIs can be used in the browser.
Report-ToReport-To enables the Reporting API. This allows a website to collect reports from the browser about various errors that may occur.
Expect-CTExpect-CT allows a site to determine if they are ready for the upcoming Chrome requirements and/or enforce their CT policy.
Access-Control-Allow-OriginThe Access-Control-Allow-Origin header is used to configure CORS.
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.