DNS Gurus
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21 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=31536000; includeSubdomains
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
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
  • • 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
Accept-Encoding

Caching Headers

1 headers
Cache-Control
Caching
no-cache, private

Content Headers

3 headers
Content-Language
Content
en
Content-Length
Content
34
Content-Type
Content
application/json

Server Headers

1 headers
Server
Server
Heroku

CORS Headers

2 headers
Access-Control-Allow-Origin
Cors
*
Access-Control-Expose-Headers
Cors
Minimum-Mobile-Version, Latest-Mobile-Version, Force-Upgrade-To-Latest-By

Cookies Headers

0 headers
No cookies headers found

Other Headers

10 headers
Date
Other
Fri, 28 Nov 2025 09:03:20 GMT
Force-Upgrade-To-Latest-By
Other
Latest-Mobile-Version
Other
2.0.0
Minimum-Mobile-Version
Other
1.4.0
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=Zgs2OjG8XHbj2%2BplTrbxdN9gWivw1B1WDd28WFWyc7o%3D\u0026sid=67ff5de4-ad2b-4112-9289-cf96be89efed\u0026ts=1764320600"}],"max_age":3600}
Reporting-Endpoints
Other
heroku-nel="https://nel.heroku.com/reports?s=Zgs2OjG8XHbj2%2BplTrbxdN9gWivw1B1WDd28WFWyc7o%3D&sid=67ff5de4-ad2b-4112-9289-cf96be89efed&ts=1764320600"
Via
Other
1.1 heroku-router
X-Ratelimit-Limit
Other
60
X-Ratelimit-Remaining
Other
59

Recommendations

Enable compression (gzip/brotli) to improve performance

Analysis completed in 58ms