Security Report Summary
B
Site: https://avatars1.githubusercontent.com/u/7259227
IP Address: 151.101.0.133
Report Time: 24 May 2017 13:24:29 UTC
Report Short URL: Hidden scans do not get a short URL.
Headers:
  • Content-Security-Policy
  • Strict-Transport-Security
  • X-Content-Type-Options
  • X-Frame-Options
  • X-XSS-Protection
  • Public-Key-Pins
  • Referrer-Policy
Raw Headers
HTTP/1.1200 OK
Cache-Controlmax-age=300
Content-Security-Policydefault-src 'none'
Content-Typeimage/png
Etag"f609b85549a4f757bdd0f27d19140d240957ae3a"
Last-ModifiedSun, 19 Apr 2015 10:42:44 GMT
Strict-Transport-Securitymax-age=31557600
Timing-Allow-Originhttps://github.com
X-Content-Type-Optionsnosniff
X-Frame-Optionsdeny
X-Xss-Protection1; mode=block
X-GitHub-Request-Id9380:1587A:2E409F2:303FF06:5925898C
Content-Length43321
Accept-Rangesbytes
DateWed, 24 May 2017 13:24:28 GMT
Via1.1 varnish
Connectionkeep-alive
X-Served-Bycache-sjc3635-SJC
X-CacheMISS
X-Cache-Hits0
X-TimerS1495632269.850176,VS0,VE117
Access-Control-Allow-Origin*
X-Fastly-Request-ID525f79d1ec4ce25fc23cb0aee74d60708d1cd4fa
ExpiresWed, 24 May 2017 13:29:28 GMT
Source-Age0
VaryAuthorization,Accept-Encoding
Missing Headers
Public-Key-PinsHTTP Public Key Pinning protects your site from MiTM attacks using rogue X.509 certificates. By whitelisting only the identities that the browser should trust, your users are protected in the event a certificate authority is compromised.
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.
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
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.
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-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 cross-site scripting filters built into most browsers. The best configuration is "X-XSS-Protection: 1; mode=block".
Access-Control-Allow-OriginThis is a very lax CORS policy. Such a policy should only be used on a public CDN.