Open
Cached
·
just now
19
Headers
Detected Technologies from Headers
HTTP Security Headers
Status
Strict-Transport-Security
Excellent
max-age=31556926; includeSubDomains; preload
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 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
Accept-Ranges
bytes
Connection
close
Vary
x-fh-requested-host, accept-encoding
accept-ranges: bytes connection: close vary: x-fh-requested-host, accept-encoding
Caching Headers
Cache-Control
max-age=3600
cache-control: max-age=3600
Content Headers
Content-Length
21376
Content-Type
text/html; charset=utf-8
content-length: 21376 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
DYNAMIC
Cf-Ray
9d2a2f39bc07f274-IAD
Date
Mon, 23 Feb 2026 22:33:22 GMT
Via
no cache
X-Cache
MISS
X-Cache-Hits
0
X-Magic-Hash
7cde8375c0fae39a05030df3eb1b731a49fc670757383b16dd27932ff08277b2
X-Release
gitbook-x-prod-10.9.1576-3c09d4a-2231338-3
X-Served-By
cache-iad-kiad7000029-IAD
X-Timer
S1771886002.359926,VS0,VE50
alt-svc: h3=":443"; ma=86400 cf-cache-status: DYNAMIC cf-ray: 9d2a2f39bc07f274-IAD date: Mon, 23 Feb 2026 22:33:22 GMT via: no cache x-cache: MISS x-cache-hits: 0 x-magic-hash: 7cde8375c0fae39a05030df3eb1b731a49fc670757383b16dd27932ff08277b2 x-release: gitbook-x-prod-10.9.1576-3c09d4a-2231338-3 x-served-by: cache-iad-kiad7000029-IAD x-timer: S1771886002.359926,VS0,VE50
Recommendations
Enable compression (gzip/brotli) to improve performance