DNS Gurus
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13 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Good
max-age=31536000; includeSubDomains
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
  • • Consider adding 'preload' to HSTS for maximum security
  • • 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

3 headers
Accept-Ranges
Performance
none
Connection
Performance
close
Vary
Performance
Accept-Encoding

Caching Headers

1 headers
Etag
Caching
"55195-m5ZePgyqDuo1AJuRVF+6xo+b2A0"

Content Headers

2 headers
Content-Length
Content
348565
Content-Type
Content
text/html; charset=utf-8

Server Headers

0 headers
No server headers found

CORS Headers

0 headers
No CORS headers found

Cookies Headers

0 headers
No cookies headers found

Other Headers

6 headers
Date
Other
Wed, 31 Dec 2025 20:16:22 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=r1vke4Nmn%2FO%2FBL4sjYjhUovfCvv%2FGsaU5nf99Ecw7VQ%3D\u0026sid=e11707d5-02a7-43ef-b45e-2cf4d2036f7d\u0026ts=1767212182"}],"max_age":3600}
Reporting-Endpoints
Other
heroku-nel="https://nel.heroku.com/reports?s=r1vke4Nmn%2FO%2FBL4sjYjhUovfCvv%2FGsaU5nf99Ecw7VQ%3D&sid=e11707d5-02a7-43ef-b45e-2cf4d2036f7d&ts=1767212182"
Via
Other
1.1 heroku-router
X-Served-By
Other
Tito

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching