DNS Gurus
Cached · just now
16 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Basic
frame-ancestors; frame-src; script-src; +2 more
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
cloudflare

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
bookstack_session=eyJpdiI6Ikg1VEFuWnVPK2I5ekxPRlh3Nms1Z1E9PSIsInZhbHVlIjoiRnIwUW9kT3UxNTRrYkFrSjMyL1Rtc1l3ODJQT05aaDlmdEV1NWNBS28vYmhqTlc1b2lqNzZDRHlkdWMyaGVUVGhWdzVCWkNEN3RaNWJETk5OVk5YYWFabys4M3FzNGhiZDAwbDV4NXBwK0o0cmxzaksycDZVK0JuSGdQNGk2OHEiLCJtYWMiOiIwM2E5OGI3OTlhMWJhMGY3ZGZiODViMDBiZTVkYzhjOTZmNDc4MDZiYmM2MzdmMTI4MmY5NDlmY2I1YTVmYmExIiwidGFnIjoiIn0%3D; expires=Wed, 14 Jan 2026 14:59:37 GMT; Max-Age=7200; path=/; secure; httponly; samesite=lax

Other Headers

7 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9bdd4fc7ab633b0c-IAD
Date
Other
Wed, 14 Jan 2026 12:59:37 GMT
Nel
Other
{"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Report-To
Other
{"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=IuYcRUkRp4QHXJMboVNuHzmuwF8RbREAWRqfbRG3LSbzmIBTV721hwXz0HzSlbJ7T5NLxa12D%2FoDkrD9QXx27BNBQB5omh%2F1FN2l0MAb0f0%3D"}]}
Server-Timing
Other
cfEdge;dur=11,cfOrigin;dur=184

Recommendations

Enable compression (gzip/brotli) to improve performance