DNS Gurus
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11 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • • Add X-Content-Type-Options: nosniff
  • • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

2 headers
Connection
Performance
close
Vary
Performance
Accept-Language,Accept-Encoding

Caching Headers

3 headers
Cache-Control
Caching
no-store, no-cache, must-revalidate
Expires
Caching
Thu, 19 Nov 1981 08:52:00 GMT
Pragma
Caching
no-cache

Content Headers

2 headers
Content-Length
Content
6052
Content-Type
Content
text/html; charset=UTF-8

Server Headers

2 headers
Server
Server
X-Powered-By
Server
ASP.NET

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
Horde=4c4a0d130cafec473e45d0b4bf7f0d1c; path=/; domain=webmail.visionwaretechnologies.com; HttpOnly

Other Headers

1 headers
Date
Other
Tue, 20 Jan 2026 10:08:50 GMT

Recommendations

Enable compression (gzip/brotli) to improve performance

Consider removing X-Powered-By header to hide server technology