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19 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=15552000; includeSubDomains
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
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 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
Accept-Encoding

Caching Headers

3 headers
Cache-Control
Caching
private
Etag
Caching
W/"581e-OihMhn4y/uO6DaXVlPkbSS19NhY"
Expires
Caching
Tue, 02 Dec 2025 10:53:31 GMT

Content Headers

2 headers
Content-Length
Content
22558
Content-Type
Content
text/html; charset=utf-8

Server Headers

1 headers
Server
Server
Google Frontend

CORS Headers

2 headers
Access-Control-Allow-Headers
Cors
Origin, X-Requested-With, Content-Type, Accept
Access-Control-Allow-Origin
Cors
https://knowable.fyi

Cookies Headers

1 headers
Set-Cookie
Cookies
XSRF-TOKEN=1Zm8Ag4A-w_N_kd_078BbuN0VGCtfEeejnlY; Path=/

Other Headers

4 headers
Date
Other
Tue, 02 Dec 2025 10:53:31 GMT
X-Cloud-Trace-Context
Other
97a12722c0f748a1e311a1b05dd741ce
X-Dns-Prefetch-Control
Other
off
X-Download-Options
Other
noopen

Recommendations

Enable compression (gzip/brotli) to improve performance

Analysis completed in 201ms