DNS Gurus
Cached · just now
17 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=31536000
Content-Security-Policy
Weak
frame-ancestors
X-Frame-Options
Good
SAMEORIGIN
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
  • • Significantly strengthen CSP directives
  • • 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

2 headers
Connection
Performance
close
Transfer-Encoding
Performance
chunked

Caching Headers

2 headers
Age
Caching
405510
Last-Modified
Caching
Sun, 28 Dec 2025 19:14:04 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=G84E53VWVmBauqyhQeeMKgkFFL8zqZGYMHeMeidfXYo-1767354754093-0.0.1.1-604800000; path=/; domain=.www.teachable.com; HttpOnly; Secure; SameSite=None

Other Headers

7 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
HIT
Cf-Ray
Other
9b7a0d0ceb2d590e-IAD
Date
Other
Fri, 02 Jan 2026 11:52:34 GMT
Surrogate-Control
Other
max-age=432000
Surrogate-Key
Other
www.teachable.com 687904fb2b26c434698c47e9 pageId:68ada780ad2c430d9c702334 6899e50b879c478a88a45269 6899e256d3819162e254e8e8
X-Lambda-Id
Other
bea1856e-3d49-4ac6-8cee-47e3935ffd8f

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching