DNS Gurus
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21 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
same-origin
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

3 headers
Connection
Performance
close
Transfer-Encoding
Performance
chunked
Vary
Performance
Accept-Encoding

Caching Headers

1 headers
Last-Modified
Caching
Thu, 08 Jan 2026 17:28:49 GMT

Content Headers

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

Server Headers

1 headers
Server
Server
cloudflare

CORS Headers

0 headers
No CORS headers found

Cookies Headers

0 headers
No cookies headers found

Other Headers

10 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9bfb4d7ddcc6d6c0-IAD
Date
Other
Sun, 18 Jan 2026 04:20:56 GMT
Nel
Other
{"report_to":"heroku-nel","response_headers":["Via"],"max_age":3600,"success_fraction":0.01,"failure_fraction":0.1}
Report-To
Other
{"group":"heroku-nel","endpoints":[{"url":"https://nel.heroku.com/reports?s=NoiGaMhITEbfVTkiqi6eXOdmVS5VGqM0xqlP56YYFsg%3D\u0026sid=1b10b0ff-8a76-4548-befa-353fc6c6c045\u0026ts=1768710056"}],"max_age":3600}
Reporting-Endpoints
Other
heroku-nel="https://nel.heroku.com/reports?s=NoiGaMhITEbfVTkiqi6eXOdmVS5VGqM0xqlP56YYFsg%3D&sid=1b10b0ff-8a76-4548-befa-353fc6c6c045&ts=1768710056"
Server-Timing
Other
cfEdge;dur=33,cfOrigin;dur=9
Speculation-Rules
Other
"/cdn-cgi/speculation"
Via
Other
1.1 heroku-router

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching