DNS Gurus
Cached · just now
7 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
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
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • 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

2 headers
Connection
Performance
close
Transfer-Encoding
Performance
chunked

Caching Headers

0 headers
No caching headers found

Content Headers

1 headers
Content-Type
Content
text/html; charset=EUC-KR

Server Headers

2 headers
Server
Server
Apache/2.4.16 (Unix) OpenSSL/1.0.2u PHP/5.3.13
X-Powered-By
Server
PHP/5.3.13

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
T_ci_session=GKSnipwgr%2FPTlkkmkX%2BaWET8zWpRowlAeFg8kXFjqFH0Pn0DnAH1qQRMT0A2NFrfAMzNVJSUaucKRepBAE0qB8xxspJxcVvCSkJIzHvkbBEsP5ksWFrPWDjX81RK3i4kLD4SkD9aw3nq16x91BJd2iqPPMo4uu96h6JK72IzH15pnv2NSG6Ez%2B14wy7w%2BjAChgZvD3o8%2F4pBaJyS%2FWOSDC7YT33ojP9YZGmUjHJQ0tmMRTO7Q2P%2BnkBb3zvFnaJNihG%2F%2Bf0kTYcmEwzVqwrgQ3OBxUyVu3q7lsKIbAnjQmFG2MiGreNlRBoTOGtVJkdejPvuD%2F7htH5f5Rg6jtj6k12NW3MO%2BJbgrZWcCQc90GqF3sDODa7qfeGqYf710nZB; path=/; domain=.teacher.co.kr

Other Headers

1 headers
Date
Other
Thu, 01 Jan 2026 18:24:17 GMT

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching

Consider removing X-Powered-By header to hide server technology