DNS Gurus
Cached · just now
16 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=31536000
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
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • 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

3 headers
Connection
Performance
close
Transfer-Encoding
Performance
chunked
Vary
Performance
accept-encoding

Caching Headers

2 headers
Age
Caching
126894
Last-Modified
Caching
Sat, 10 Jan 2026 20:26:51 GMT

Content Headers

1 headers
Content-Type
Content
text/html

Server Headers

0 headers
No server headers found

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
_cfuvid=fbM_4zPD74Z_7ie2DMlm9ADy.35LwO8BqLN4BMLOenM-1768203706615-0.0.1.1-604800000; path=/; domain=.cdn.webflow.com; HttpOnly; Secure; SameSite=None

Other Headers

8 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
HIT
Cf-Ray
Other
9bcb036dca709c2a-IAD
Date
Other
Mon, 12 Jan 2026 07:41:46 GMT
Surrogate-Control
Other
max-age=432000
Surrogate-Key
Other
cardstack.com 66300d23650018582a8d5b56 pageId:66300d23650018582a8d5b55 66300d23650018582a8d5beb
X-Cluster-Name
Other
us-east-1-prod-hosting-red
X-Lambda-Id
Other
6704f7fc-7112-4892-993e-3db266bd544e

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching