DNS Gurus
Cached · just now
18 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=31536000
Content-Security-Policy
Weak
frame-ancestors
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
  • • Significantly strengthen CSP directives
  • • 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
close
Transfer-Encoding
Performance
chunked
Vary
Performance
Accept-Encoding

Caching Headers

2 headers
Age
Caching
607335
Last-Modified
Caching
Tue, 23 Dec 2025 03:53:25 GMT

Content Headers

1 headers
Content-Type
Content
text/html

Server Headers

1 headers
Server
Server
cloudflare

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
_cfuvid=LJoGdMlzNXDptq7OlgQAWNr5lC9QcgtPbICYSeJAq70-1767069340064-0.0.1.1-604800000; path=/; domain=.www.growthbook.io; HttpOnly; Secure; SameSite=None

Other Headers

7 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
HIT
Cf-Ray
Other
9b5ed4ef282786a6-IAD
Date
Other
Tue, 30 Dec 2025 04:35:40 GMT
Surrogate-Control
Other
max-age=2147483647
Surrogate-Key
Other
www.growthbook.io 65b7ac22fd61413f7db83b81 pageId:693106aff4c8a359c56b3bf3
X-Lambda-Id
Other
6e0f9d78-2a1c-4c85-8bd1-75040e79bb9c

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching