DNS Gurus
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14 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
Vary
Performance
Origin

Caching Headers

1 headers
Etag
Caching
W/"17-SuRA/yvUWUo8rK6x7dKURLeBo+0"

Content Headers

2 headers
Content-Length
Content
23
Content-Type
Content
application/json; charset=utf-8

Server Headers

2 headers
Server
Server
cloudflare
X-Powered-By
Server
Express

CORS Headers

0 headers
No CORS headers found

Cookies Headers

0 headers
No cookies headers found

Other Headers

7 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9b7508d2cc9a05fc-IAD
Date
Other
Thu, 01 Jan 2026 21:15:52 GMT
Nel
Other
{"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Report-To
Other
{"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=WgwWNn0QjOUtIahXbDxrsND%2FvsFej1348n25kiY3MsFQXTD5XJKGf5JkhBAO6YQSAszLXefrG7mz%2BZKZIb9Ulu6lXHoT%2B3ZzI5egQwI9Dw%3D%3D"}]}
Server-Timing
Other
cfEdge;dur=16,cfOrigin;dur=377

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