DNS Gurus
Cached · just now
14 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Present
unload=()
Recommendations
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)

Performance Headers

3 headers
Connection
Performance
close
Transfer-Encoding
Performance
chunked
Vary
Performance
Accept-Encoding

Caching Headers

3 headers
Age
Caching
0
Cache-Control
Caching
private, no-cache, must-revalidate
Pragma
Caching
no-cache

Content Headers

1 headers
Content-Type
Content
text/html; charset=UTF-8

Server Headers

0 headers
No server headers found

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
XB=ba4a0520-f76e-11f0-95fe-4b5ad9c70bfd&v=6&u=1769071539&s=j3; expires=Sun, 23 Jan 2028 08:45:39 GMT; path=/; domain=.yahoo.co.jp; secure; samesite=none

Other Headers

2 headers
Accept-Ch
Other
Sec-CH-UA-Full-Version-List, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Arch
Date
Other
Thu, 22 Jan 2026 08:45:39 GMT

Recommendations

Enable compression (gzip/brotli) to improve performance