14 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=15552000
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • Add Content-Security-Policy header to prevent XSS attacks
  • 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

3 headers
Connection
Performance
keep-alive
Transfer-Encoding
Performance
chunked
Vary
Performance
Accept-Encoding

Caching Headers

1 headers
Cache-Control
Caching
private, no-cache, no-store, max-age=0, must-revalidate

Content Headers

1 headers
Content-Type
Content
text/html; charset=utf-8

Server Headers

2 headers
Server
Server
cloudflare
X-Powered-By
Server
Next.js

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
_cfuvid=VEjPu8X30uFkpijYxOCtfqUtK6Rg1FOyxi0zTTb2SaM-1762135351611-0.0.1.1-604800000; path=/; domain=.brilliant.org; HttpOnly; Secure; SameSite=None

Other Headers

4 headers
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
99884a395bccc587-IAD
Date
Other
Mon, 03 Nov 2025 02:02:31 GMT
X-Envoy-Upstream-Service-Time
Other
120

Recommendations

Enable compression (gzip/brotli) to improve performance

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

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