Open
Cached
·
just now
16
Headers
Detected Technologies from Headers
HTTP Security Headers
Status
Strict-Transport-Security
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer-when-downgrade
Permissions-Policy
Missing
Not configured
Recommendations
- • Add Strict-Transport-Security header with max-age of at least 1 year
- • Add Content-Security-Policy header to prevent XSS attacks
- • Consider adding Permissions-Policy to control browser features
Performance Headers
Accept-Ranges
bytes
Connection
close
Vary
Accept-Encoding,User-Agent
accept-ranges: bytes connection: close vary: Accept-Encoding,User-Agent
Caching Headers
Etag
"95da-5cfa454fa89e9"
Last-Modified
Sun, 31 Oct 2021 11:26:30 GMT
etag: "95da-5cfa454fa89e9" last-modified: Sun, 31 Oct 2021 11:26:30 GMT
Content Headers
Content-Language
ja
Content-Length
38362
Content-Type
text/html
content-language: ja content-length: 38362 content-type: text/html
CORS Headers
No CORS headers found
Cookies Headers
Other Headers
Date
Sun, 19 Jul 2026 04:20:40 GMT
Feature-Policy
sync-xhr 'self'
X-Download-Options
noopen
date: Sun, 19 Jul 2026 04:20:40 GMT feature-policy: sync-xhr 'self' x-download-options: noopen
Recommendations
Enable compression (gzip/brotli) to improve performance
Add Cache-Control header to optimize caching