DNS Gurus
Cached · just now
20 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Excellent
max-age=31536000; includeSubDomains; preload
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
  • • 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

3 headers
Connection
Performance
close
Transfer-Encoding
Performance
chunked
Vary
Performance
accept-encoding

Caching Headers

4 headers
Cache-Control
Caching
no-cache, no-store, must-revalidate
Expires
Caching
Sat, 26 Jul 1997 05:00:00 GMT
Last-Modified
Caching
Fri, 23 Jan 2026 14:34:10 GMT
Pragma
Caching
no-cache

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
__cf_bm=rEBBQj9y_lXQ5Kz5d8.5qQi7Hs7XgLrviYHuKpj2Lew-1769178850-1.0.1.1-N9Ajq0FyMVbxjPN7O7ZeJR7AnA1V9xEG3Qv5lX6lWLKiPJMSCRNOMwu1QiCLOw8Bs7y9.tfPJZExDcVxtRx7Pqu4.MvWoqD66stHB0WxrtA; path=/; expires=Fri, 23-Jan-26 15:04:10 GMT; domain=.chesskid.com; HttpOnly; Secure; SameSite=None

Other Headers

6 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9c2802a59d85878c-IAD
Content-Security-Policy-Read-Only
Other
block-all-mixed-content; default-src 'self' www.youtube.com media.chesscomfiles.com; connect-src 'self' *.chesscomfiles.com live.chesskid.com wss://services.chesskid.com *.chesskidfiles.com services.chesskid.com wss://live.chesskid.com https://api.amplitude.com wss://global.vss.twilio.com wss://sdkgw.us1.twilio.com wss://analysis-va.chess.com https://www.chess.com/bundles/web/images/webgl_data/ wss://www.chesskid.com analytics.google.com *.osano.com; script-src 'self' 'unsafe-inline' 'unsafe-eval' *.chesskidfiles.com cdnjs.cloudflare.com www.google-analytics.com www.gstatic.com www.googletagmanager.com q.stripe.com cmp.osano.com; frame-src 'self' www.youtube.com media.chesscomfiles.com cmp.osano.com; style-src 'self' 'unsafe-inline' *.chesskidfiles.com fonts.googleapis.com; img-src 'self' *.chesskidfiles.com *.chesscomfiles.com www.google-analytics.com www.google.com https://stats.g.doubleclick.net data: https://www.chess.com/bundles/web/images/webgl_data/ https://www.chess.com/chess-themes/ https://www.chess.com/boards/; media-src *.chesskidfiles.com *.chesscomfiles.com media.chesskidfiles.com mediastream:; font-src 'self' *.chesskidfiles.com fonts.gstatic.com data:; object-src 'none'; worker-src 'self' blob:; form-action 'self' www.paypal.com; script-src-elem 'self' 'unsafe-inline' cmp.osano.com www.googleadservices.com; report-uri https://sentry.io/api/1420930/security/?sentry_key=be910d5c55f24e30a90805d6f86f6345&sentry_environment=prod&sentry_release=bf3738dcdc33c6d2a2fdf80d763c128ee0081501
Date
Other
Fri, 23 Jan 2026 14:34:10 GMT
X-Chesskid-Version
Other
bf3738dcdc33c6d2a2fdf80d763c128ee0081501

Recommendations

Enable compression (gzip/brotli) to improve performance