DNS Gurus
Cached · 5h ago
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
169859
Last-Modified
Caching
Mon, 02 Feb 2026 07:42:23 GMT

Content Headers

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

Server Headers

1 headers
Server
Server
cloudflare

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
_cfuvid=V8BzRmA9CcY9kFpA4xuwY04uh3AyKGP63fq1GRkxerw-1770188002617-0.0.1.1-604800000; path=/; domain=.www.ottolearn.com; HttpOnly; Secure; SameSite=None

Other Headers

7 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
HIT
Cf-Ray
Other
9c8840282c08e647-IAD
Date
Other
Wed, 04 Feb 2026 06:53:22 GMT
Surrogate-Control
Other
max-age=432000
Surrogate-Key
Other
www.ottolearn.com 5cd48707e016236834e4ed57 pageId:5dbc59957888952074d9afef 5d1b83e50e0222ea9fa509f6 5cd48707e016237649e4ed60 5cd48707e016234fd3e4ed61
X-Lambda-Id
Other
03741a92-b3d9-4cfb-804e-18711ca50ab8

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching