DNS Gurus
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20 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=15552000; includeSubDomains
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer
Permissions-Policy
Missing
Not configured
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

2 headers
Connection
Performance
close
Vary
Performance
Origin

Caching Headers

1 headers
Etag
Caching
W/"90-Jgzc7qjjpJKQdeDuhWJ7ZXx+iow"

Content Headers

2 headers
Content-Length
Content
144
Content-Type
Content
application/json; charset=utf-8

Server Headers

1 headers
Server
Server
nginx/1.18.0 (Ubuntu)

CORS Headers

2 headers
Access-Control-Allow-Credentials
Cors
true
Access-Control-Expose-Headers
Cors
Content-Disposition

Cookies Headers

0 headers
No cookies headers found

Other Headers

5 headers
Date
Other
Wed, 21 Jan 2026 13:46:02 GMT
Origin-Agent-Cluster
Other
?1
X-Dns-Prefetch-Control
Other
off
X-Download-Options
Other
noopen
X-Permitted-Cross-Domain-Policies
Other
none

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching