DNS Gurus

SSL Verification Bypassed

The server's SSL certificate could not be verified. The analysis was completed using insecure mode. Data may be less reliable.

Reason:

Hostname Mismatch - certificate is issued for coetto.jp, www.coetto.jp, not for ec2-18-180-83-213.ap-northeast-1.compute.amazonaws.com

Open Cached · just now
6 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

0 headers
No performance headers found

Caching Headers

1 headers
Cache-Control
Caching
no-cache, private

Content Headers

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

Server Headers

2 headers
Server
Server
nginx/1.20.0
X-Powered-By
Server
PHP/7.4.7

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
coetto_session=GlNBp2kkaBdy35LTV5O2k534sM3wCtY6yQZ99zYD; expires=Mon, 09-Feb-2026 19:40:00 GMT; Max-Age=6480000; path=/; httponly

Other Headers

1 headers
Date
Other
Wed, 26 Nov 2025 19:40:00 GMT

Recommendations

Enable compression (gzip/brotli) to improve performance

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

Analysis completed in 1595ms