DNS Gurus
Cached · just now
20 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=2629746; includeSubDomains
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
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
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

2 headers
Connection
Performance
close
Transfer-Encoding
Performance
chunked

Caching Headers

0 headers
No caching headers found

Content Headers

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

Server Headers

2 headers
Server
Server
cloudflare
X-Runtime
Server
0.007158

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
_cfuvid=QW61Lq.qACAWcfJF8KFyHAqL.AOI4PGZtd0W5lAVGsE-1767104792415-0.0.1.1-604800000; path=/; domain=.teachable.com; HttpOnly; Secure; SameSite=None

Other Headers

9 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9b6236784a56d600-IAD
Date
Other
Tue, 30 Dec 2025 14:26:32 GMT
Speculation-Rules
Other
"/cdn-cgi/speculation"
X-Download-Options
Other
noopen
X-Fedora-School-Id
Other
X-Permitted-Cross-Domain-Policies
Other
none
X-Request-Id
Other
ed39e1cc-be7e-42a5-991a-e91225637ae5

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching