DNS Gurus
Cached · 7h ago
16 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=31536000
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
  • • 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 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
Accept-Encoding

Caching Headers

2 headers
Age
Caching
76631
Last-Modified
Caching
Sun, 28 Dec 2025 16:34:46 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=iXD5NJ8cdrknp34ugW0fLferUL5fjOXbWIaVXgQAEzQ-1767016317530-0.0.1.1-604800000; path=/; domain=.www.schoolblocks.nl; HttpOnly; Secure; SameSite=None

Other Headers

7 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
HIT
Cf-Ray
Other
9b59c6703aedfbd0-IAD
Date
Other
Mon, 29 Dec 2025 13:51:57 GMT
Surrogate-Control
Other
max-age=432000
Surrogate-Key
Other
www.schoolblocks.nl 6176badeae5527574d73518a pageId:64cce7c1922093aa7622849a 64cce7c2922093aa7622856d 64cce7c2922093aa7622850f 64cce7c2922093aa76228572 65606b60f6683381176e9b94
X-Lambda-Id
Other
c0457337-9430-48e8-b429-3ea01aeac43f

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching

Analysis completed in 307ms