DNS Gurus
Cached · just now
28 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

3 headers
Connection
Performance
close
Transfer-Encoding
Performance
chunked
Vary
Performance
rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch, Accept-Encoding

Caching Headers

1 headers
Cache-Control
Caching
max-age=5, stale-while-revalidate=60

Content Headers

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

Server Headers

1 headers
X-Powered-By
Server
Next.js

CORS Headers

3 headers
Access-Control-Allow-Headers
Cors
*
Access-Control-Allow-Methods
Cors
*
Access-Control-Allow-Origin
Cors
*

Cookies Headers

1 headers
Set-Cookie
Cookies
experimentGroup=a; Path=/; Expires=Mon, 18 Jan 2027 22:42:46 GMT

Other Headers

18 headers
Alt-Svc
Other
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
Date
Other
Sun, 18 Jan 2026 22:42:46 GMT
Link
Other
<https://next.cdn.pxr.nl/_next/static/css/eda14a178a4b5b57.css>; rel=preload; as="style"; crossorigin="anonymous", <https://next.cdn.pxr.nl/_next/static/css/bc7d4a17af70dd09.css>; rel=preload; as="style"; crossorigin="anonymous"
Via
Other
1.1 google
X-Dns-Prefetch-Control
Other
on
X-Middleware-Rewrite
Other
/nl-NL/h~www.runners.nl*l~nl_NL*p~rw*c~800*e~a?lang=nl-NL
X-Next-Clean-Pathname
Other
/
X-Next-Context-Hash
Other
h~www.runners.nl*l~nl_NL*p~rw*c~800*e~a
X-Next-Defaultlocale
Other
en
X-Next-Hostname
Other
www.runners.nl
X-Next-Internal-Pathname
Other
/nl-NL/h~www.runners.nl*l~nl_NL*p~rw*c~800*e~a
X-Next-Lang
Other
nl-NL
X-Next-Locale
Other
nl_NL
X-Next-Pathname
Other
/nl-NL/h~www.runners.nl*l~nl_NL*p~rw*c~800*e~a
X-Next-Platform
Other
rw
X-Next-Route
Other
unknown
X-Next-Searchparams
Other
{}
X-Next-Url
Other
https://0.0.0.0:3000/

Recommendations

Enable compression (gzip/brotli) to improve performance

Consider removing X-Powered-By header to hide server technology