DNS Gurus
Cached · just now
25 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=31536000
Content-Security-Policy
Weak
upgrade-insecure-requests
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Good
no-referrer-when-downgrade
Permissions-Policy
Missing
Not configured
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Significantly strengthen CSP directives
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • • Add X-Content-Type-Options: nosniff
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

2 headers
Connection
Performance
close
Transfer-Encoding
Performance
chunked

Caching Headers

2 headers
Cache-Control
Caching
s-maxage=36000, max-age=5
Last-Modified
Caching
Mon, 22 Dec 2025 10:28:26 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
_cfuvid=MOBpdAUNoZO4la.p_4P4w9oCzQuoElNx5w7hd0rqsFo-1767316823254-0.0.1.1-604800000; path=/; domain=.www.cypherlearning.com; HttpOnly; Secure; SameSite=None

Other Headers

15 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Ray
Other
9b766f011cb1c814-IAD
Date
Other
Fri, 02 Jan 2026 01:20:23 GMT
Edge-Cache-Tag
Other
CT-152312032355,CT-175018933622,CT-68688277316,CT-68761798228,P-5486510,W-116084848966,W-149723082276,W-162421610355,W-59409998989,W-59410175798,W-59410258484,W-59410864207,W-59414180728,CW-109495677221,CW-110010499737,CW-112858357806,CW-115555375733,CW-116098145191,CW-132003549243,CW-132228118621,CW-147939037340,CW-155819284060,CW-159501085476,CW-174651170459,CW-174915972270,CW-175109182033,CW-176875505969,CW-177136494705,CW-195457959537,CW-59006231808,CW-59079869031,CW-60084446483,CW-60246266804,CW-60248469538,CW-70013336461,CW-89766559521,E-111366363938,E-115554813348,E-115557936283,E-59003677756,E-59006116664,E-59006188839,E-59006811188,E-59006855854,MENU-116084848966,MENU-116266132269,MENU-149723082276,MENU-162421610355,MENU-59409998989,MENU-59410175798,MENU-59410258484,MENU-59410864207,MENU-59414180728,PGS-ALL,SW-1,GC-115554287274,GC-116098877780,GC-147938471771,GC-174915622793,GC-176875758886,GC-59263425539,GC-90020145796,TS-59006295388
Link
Other
<https://www.cypherlearning.com/hubfs/hub_generated/template_assets/1/59006811188/1766399107123/template_main.min.css>; rel=preload; as=style,<https://www.cypherlearning.com/hubfs/hub_generated/template_assets/1/59006855854/1766399109007/template_theme-overrides.min.css>; rel=preload; as=style,<https://www.cypherlearning.com/hubfs/hub_generated/module_assets/1/116098145191/1764087543225/module_Top_Header_V2.min.css>; rel=preload; as=style,</hs/hsstatic/cos-LanguageSwitcher/static-1.336/sass/LanguageSwitcher.css>; rel=preload; as=style,<https://www.cypherlearning.com/hubfs/hub_generated/module_assets/1/60246266804/1741345769255/module_Mobile_Menu_Top_Header.min.css>; rel=preload; as=style,<https://www.cypherlearning.com/hubfs/hub_generated/module_assets/1/59006231808/1766388945627/module_menu.min.css>; rel=preload; as=style,<https://www.cypherlearning.com/hubfs/hub_generated/module_assets/1/60248469538/1740926863635/module_Mobile_Menu_Bottom_Header.min.css>; rel=preload; as=style
Nel
Other
{"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}
Report-To
Other
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=T12QSO9YuNemsekVIXGIR5rcdAdvGNWkHd9w%2B52aI3nE%2BOlUEAc2T6c6qJEp0VPM4estaHH3bdepg%2FJw%2BII8FrvEnlupMyyw%2B4GONjqaQ1BcU1akygRC%2BFs3u2J4FZ1ZZ3c8U%2FOL5Hg%3D"}],"group":"cf-nel","max_age":604800}
X-Hs-Cache-Config
Other
BrowserCache-5s-EdgeCache-5s
X-Hs-Cache-Control
Other
s-maxage=36000, max-age=0
X-Hs-Cf-Cache-Status
Other
HIT
X-Hs-Cfworker-Meta
Other
{"contentType":"SITE_PAGE","resolver":"PreRenderedContentResolver"}
X-Hs-Content-Id
Other
175018933622
X-Hs-Hub-Id
Other
5486510
X-Hs-Portal-Id
Other
5486510
X-Hs-Prerendered
Other
Mon, 22 Dec 2025 10:28:26 GMT

Recommendations

Enable compression (gzip/brotli) to improve performance