Open
Cached
·
just now
10
Headers
HTTP Security Headers
Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Basic
frame-ancestors; frame-src; script-src; +2 more
frame-ancestors 'self'; frame-src 'self' https://*.draw.io https://*.youtube.com https://*.youtube-nocookie.com https://*.vimeo.com https://embed.diagrams.net; script-src http: https: 'nonce-hi6LLaV6SbVsLCVnEskNTjLl' 'strict-dynamic'; object-src 'self'; base-uri 'self'
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 Strict-Transport-Security header with max-age of at least 1 year
- • Improve CSP by adding more specific directives and removing 'unsafe-inline'
- • 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
Cache-Control
Caching
no-cache, no-store, private
Expires
Caching
Sun, 12 Jul 2015 19:01:00 GMT
Content Headers
1 headers
Content-Type
Content
text/html; charset=utf-8
Server Headers
1 headers
Server
Server
Apache/2.4.64 (Ubuntu)
CORS Headers
0 headers
No CORS headers found
Cookies Headers
1 headers
Set-Cookie
Cookies
bookstack_session=eyJpdiI6InlGZ1RKcnYxdjJKRmZvdjBqSFFKaEE9PSIsInZhbHVlIjoiZEUxcTVPZWVJTWZkZk8rdjkxSUwyM3dHOURDQ0d3SlJ0L3JtN0dob2ZFc3JCbG8vbW5mcEpRcUF2bDlGdjE1UExXdEU1a2hzaUJQYmt1SHdjRCtTZGRyWWRUbTlOajNhaWM3RUtiUjQ1blA5ZEo3blZvbG00SHZSMkdENWJZa20iLCJtYWMiOiIwMmRkMjA3M2NiNDllZDI1OWY2YjI1NmE1ZTZlNDU0YzJjYjg4NzkxNGM0ZDhjZjhhZmZkMWViNzM1MWQyNjk5IiwidGFnIjoiIn0%3D; expires=Wed, 28 Jan 2026 00:31:17 GMT; Max-Age=7200; path=/; httponly; samesite=lax
Other Headers
1 headers
Date
Other
Tue, 27 Jan 2026 22:31:17 GMT
Recommendations
Enable compression (gzip/brotli) to improve performance