DNS Gurus
Cached · just now
13 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Weak
frame-ancestors
X-Frame-Options
Present
ALLOW-FROM https://support.collaboraoffice.com https://mautic.collaboraoffice.com https://www.collaboraonline.con
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • Significantly strengthen CSP directives
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

2 headers
Accept-Ranges
Performance
bytes
Connection
Performance
close

Caching Headers

2 headers
Etag
Caching
"69493eb9-f5679"
Last-Modified
Caching
Mon, 22 Dec 2025 12:51:05 GMT

Content Headers

2 headers
Content-Length
Content
1005177
Content-Type
Content
text/html

Server Headers

1 headers
Server
Server
nginx

CORS Headers

0 headers
No CORS headers found

Cookies Headers

0 headers
No cookies headers found

Other Headers

1 headers
Date
Other
Thu, 01 Jan 2026 04:29:52 GMT

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching