DNS Gurus
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16 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

2 headers
Connection
Performance
close
Vary
Performance
Accept-Language, Cookie

Caching Headers

0 headers
No caching headers found

Content Headers

3 headers
Content-Language
Content
en
Content-Length
Content
37822
Content-Type
Content
text/html; charset=utf-8

Server Headers

1 headers
Server
Server
Heroku

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
django_language=en; expires=Sat, 02 Jan 2027 10:08:21 GMT; Max-Age=31536000; Path=/

Other Headers

5 headers
Date
Other
Fri, 02 Jan 2026 10:08:21 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=ZjDRTaUj5QVEFLUHDIrBubbvaaJs%2Fm%2FSd4jcFbfNinE%3D\u0026sid=e11707d5-02a7-43ef-b45e-2cf4d2036f7d\u0026ts=1767348501"}],"max_age":3600}
Reporting-Endpoints
Other
heroku-nel="https://nel.heroku.com/reports?s=ZjDRTaUj5QVEFLUHDIrBubbvaaJs%2Fm%2FSd4jcFbfNinE%3D&sid=e11707d5-02a7-43ef-b45e-2cf4d2036f7d&ts=1767348501"
Via
Other
1.1 heroku-router

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching