DNS Gurus
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16 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=60; includeSubDomains; preload
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
same-origin
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
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

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

Caching Headers

0 headers
No caching headers found

Content Headers

3 headers
Content-Language
Content
es-mx
Content-Length
Content
179
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

0 headers
No cookies headers found

Other Headers

5 headers
Date
Other
Tue, 13 Jan 2026 05:56:53 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=0W%2F3%2F3K52G0i2CU%2FAzyG4NZovRfKA7RZep1Eqjxy1Zs%3D\u0026sid=af571f24-03ee-46d1-9f90-ab9030c2c74c\u0026ts=1768283813"}],"max_age":3600}
Reporting-Endpoints
Other
heroku-nel="https://nel.heroku.com/reports?s=0W%2F3%2F3K52G0i2CU%2FAzyG4NZovRfKA7RZep1Eqjxy1Zs%3D&sid=af571f24-03ee-46d1-9f90-ab9030c2c74c&ts=1768283813"
Via
Other
1.1 heroku-router

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching