DNS Gurus
Cached · just now
11 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
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
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • 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

2 headers
Connection
Performance
close
Vary
Performance
Origin

Caching Headers

0 headers
No caching headers found

Content Headers

2 headers
Content-Length
Content
442
Content-Type
Content
application/json

Server Headers

1 headers
Server
Server
cloudflare

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
_cfuvid=zmZvfkd9jJRDGz2gzs6uHihMsXwyreEF2l6ncrFUhNs-1769162447747-0.0.1.1-604800000; path=/; domain=.sumup.com; HttpOnly; Secure; SameSite=None

Other Headers

5 headers
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9c26722fef85d650-IAD
Date
Other
Fri, 23 Jan 2026 10:00:47 GMT
Nel
Other
{"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}
Report-To
Other
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=hAFnuimV0dynCLMQpcIc2ThqqfNF9svJxxz6vr6kCvR5TYd%2FzwHr%2BzseePkI07wtnnzMiqJ0meOvwhoMuXmUDMIXWO6BaOEugjva21kMayaYJCEZ%2B3FhddBzyfPnJ7Z%2BkW0%3D"}],"group":"cf-nel","max_age":604800}

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching