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
511728
Last-Modified
Caching
Wed, 21 Jan 2026 09:50:00 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=lwT6ssH9RkIO.FKEs0IMAMWUPdLED6AkkPGKGYeBYx0-1769500729029-0.0.1.1-604800000; path=/; domain=.playbook.trainual.com; HttpOnly; Secure; SameSite=None

Other Headers

7 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
HIT
Cf-Ray
Other
9c46b503ff372a96-IAD
Date
Other
Tue, 27 Jan 2026 07:58:49 GMT
Surrogate-Control
Other
max-age=2147483647
Surrogate-Key
Other
playbook.trainual.com 62c4d6cc4068cd1b0349a2bc pageId:62c4d6cc4068cd32c649a2bd
X-Lambda-Id
Other
d150c578-8868-46c5-b840-6eab6014ad1f

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching