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
267078
Last-Modified
Caching
Mon, 29 Dec 2025 15:10:55 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=8J9zuUmlzk5eKPBk10AcVy6_w_mpHTztwdspsisOuFk-1767288133788-0.0.1.1-604800000; path=/; domain=.docs.cerkl.com; HttpOnly; Secure; SameSite=None

Other Headers

7 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
HIT
Cf-Ray
Other
9b73b293d90272d4-IAD
Date
Other
Thu, 01 Jan 2026 17:22:13 GMT
Surrogate-Control
Other
max-age=432000
Surrogate-Key
Other
docs.cerkl.com 624b04085fe10352bc2a8895 pageId:64828c1d7cdf829e104b13b0 64828c1d7cdf829e104b13b8
X-Lambda-Id
Other
ab4be453-dbd9-4dcc-a0cf-0fe82b6a45d2

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching