DNS Gurus
Cached · just now
22 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Good
max-age=31536000; includeSubDomains
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Consider adding 'preload' to HSTS for maximum security
  • • 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

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

Caching Headers

3 headers
Age
Caching
300
Cache-Control
Caching
public, max-age=14400
Expires
Caching
Mon, 26 Jan 2026 13:10:58 GMT

Content Headers

2 headers
Content-Language
Content
en
Content-Type
Content
application/json

Server Headers

1 headers
Server
Server
cloudflare

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
__cf_bm=5LX_gDlD9YwLOYTZvlKWMbaYg9dMBT7xw4A3R3LCUfc-1769418658-1.0.1.1-WJNuRpYCXuTuiOC4gMkUUfwK61KI2ndR.AXMbeT0aK6eonYy4T3r7P.cD8FxMqQb7SeG05ZQI0518saBABVRPEBkpDvaoVj7qNVEYO3Z_nBxdGqhqV4XgyfWABbUxg97; path=/; expires=Mon, 26-Jan-26 09:40:58 GMT; domain=.chess.com; HttpOnly; Secure; SameSite=None

Other Headers

11 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
HIT
Cf-Ray
Other
9c3ee1549fcbf83a-IAD
Date
Other
Mon, 26 Jan 2026 09:10:58 GMT
Nel
Other
{"success_fraction":1,"report_to":"cf-nel","max_age":604800}
Report-To
Other
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=m4reMfNG8892ivVFKmUBb7GLBW4jyOJwsYQMCScQ24u66L8XjGY3A1jeGFjbS6deAwKA4czxqIY7lp8l27Erbf%2F0JSgO%2Fm8x5XrpE4Tb8tmbZYgHc%2BwRj%2FF6eB3ozcY%3D"}],"group":"cf-nel","max_age":604800}
X-Chesscom-Matched
Other
api_site_index
X-Chesscom-Request-Id-Cdn
Other
9c3eda023b3b5e49-IAD
X-Chesscom-Request-Id-Lb
Other
0f0b08d1cee11fc70dd3cb0479a6a322
X-Chesscom-Servedby
Other
36
X-Chesscom-Version
Other
20260123114856

Recommendations

Enable compression (gzip/brotli) to improve performance