Open
Cached
·
just now
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
19390
Last-Modified
Thu, 07 May 2026 11:47:30 GMT
age: 19390 last-modified: Thu, 07 May 2026 11:47:30 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
9f81d6ec1a7af268-IAD
Date
Thu, 07 May 2026 17:10:41 GMT
Surrogate-Control
max-age=2147483647
Surrogate-Key
www.stackup.fi 66ec53aab3e076e2447f20b8 pageId:66ec53aab3e076e2447f20d5
X-Lambda-Id
10536cb0-5698-409d-8711-db091ac132ea
X-Wf-Region
us-east-1
alt-svc: h3=":443"; ma=86400 cf-cache-status: HIT cf-ray: 9f81d6ec1a7af268-IAD date: Thu, 07 May 2026 17:10:41 GMT surrogate-control: max-age=2147483647 surrogate-key: www.stackup.fi 66ec53aab3e076e2447f20b8 pageId:66ec53aab3e076e2447f20d5 x-lambda-id: 10536cb0-5698-409d-8711-db091ac132ea x-wf-region: us-east-1
Recommendations
Enable compression (gzip/brotli) to improve performance
Add Cache-Control header to optimize caching