Open
Cached
·
1h ago
19
Headers
Detected Technologies from Headers
HTTP Security Headers
Status
Strict-Transport-Security
Present
max-age=31536000
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
Connection
close
Transfer-Encoding
chunked
Vary
accept-encoding
connection: close transfer-encoding: chunked vary: accept-encoding
Caching Headers
Age
1286359
Last-Modified
Thu, 23 Apr 2026 04:01:52 GMT
age: 1286359 last-modified: Thu, 23 Apr 2026 04:01:52 GMT
Content Headers
Content-Type
text/html; charset=utf-8
content-type: text/html; charset=utf-8
Server Headers
Server
cloudflare
server: cloudflare
CORS Headers
No CORS headers found
Cookies Headers
Other Headers
Alt-Svc
h3=":443"; ma=86400
Cf-Cache-Status
HIT
Cf-Ray
9f84a56e6fb9054a-IAD
Date
Fri, 08 May 2026 01:21:11 GMT
Surrogate-Control
max-age=2147483647
Surrogate-Key
www.classapp.com.br 5cf6646fb1bedb1cac953e0c pageId:642487795e01143cd781ffef
X-Lambda-Id
cc83cdfc-f368-4f9c-8704-ca1596637d69
X-Wf-Region
us-east-1
alt-svc: h3=":443"; ma=86400 cf-cache-status: HIT cf-ray: 9f84a56e6fb9054a-IAD date: Fri, 08 May 2026 01:21:11 GMT surrogate-control: max-age=2147483647 surrogate-key: www.classapp.com.br 5cf6646fb1bedb1cac953e0c pageId:642487795e01143cd781ffef x-lambda-id: cc83cdfc-f368-4f9c-8704-ca1596637d69 x-wf-region: us-east-1
Recommendations
Enable compression (gzip/brotli) to improve performance
Add Cache-Control header to optimize caching