DNS Gurus
Cached · just now
12 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=15780000; includeSubDomains; preload
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Good
nosniff
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 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

1 headers
Last-Modified
Caching
Mon, 15 Dec 2025 23:40:14 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
__cf_bm=JieaAV5qHiHosO4Sou07DDyJwMiSt.NSEeWhajlKhJA-1768653489-1.0.1.1-IKbJiDwZ4vKH8n9cuzwzkkhdQEm0VMkTWldJN0ZWhlairZ0jDvgdTJqTdKyTz5.wYLOucX3e24pXDgqzmtkcDEcuN2JwFVLctFUzcV3oMXQ; path=/; expires=Sat, 17-Jan-26 13:08:09 GMT; domain=.signup.dexcom.eu; HttpOnly; Secure; SameSite=None

Other Headers

3 headers
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9bf5e871794bd6df-IAD
Date
Other
Sat, 17 Jan 2026 12:38:09 GMT

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching