All-in-one free web application security tool. Web application vulnerability and privacy scanner with support for HTTP cookies, Flash, HTML5 localStorage, sessionStorage, CANVAS, Supercookies, Evercookies. Includes a free SSL/TLS, HTML and HTTP vulnerability scanner and URL malware scanner.

Prevalence of interesting HTTP headers
HTTP header Count
X-Permitted-Cross-Domain-Policies 1036
X-Powered-By 679868
PICS-Label 380
Link 149039
X-Frame-Options 70937
Server 1417424
Access-Control-Allow-Origin 48282
Frame-Options 82
MicrosoftOfficeWebServer 3573
Content-Security-Policy 2917
X-Content-Security-Policy-Report-Only 24
X-AspNet-Version 90910
X-WebKit-CSP 313
X-WebKit-CSP-Report-Only 37
X-Content-Type-Options 85060
Public-Key-Pins 330
P3P 133925
X-Clacks-Overhead 683
Public-Key-Pins-Report-Only 1017
Content-Security-Policy-Report-Only 1274
X-XSS-Protection 82411
Strict-Transport-Security 22929
X-Content-Security-Policy 534
MicrosoftSharePointTeamServices 2986
Location 7