DNS Gurus
Cached · just now
12 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
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
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • 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

2 headers
Accept-Ranges
Performance
bytes
Connection
Performance
close

Caching Headers

2 headers
Etag
Caching
"b88947da80fdf34a341f928f6a59f60f"
Last-Modified
Caching
Tue, 20 Jan 2026 14:14:30 GMT

Content Headers

2 headers
Content-Length
Content
861
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
Thu, 22 Jan 2026 03:41:10 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=1uQM3aiZY3ZzUAHUbT%2F9TjKsjMcCmUnqfknpQMzOw94%3D\u0026sid=1b10b0ff-8a76-4548-befa-353fc6c6c045\u0026ts=1769053271"}],"max_age":3600}
Reporting-Endpoints
Other
heroku-nel="https://nel.heroku.com/reports?s=1uQM3aiZY3ZzUAHUbT%2F9TjKsjMcCmUnqfknpQMzOw94%3D&sid=1b10b0ff-8a76-4548-befa-353fc6c6c045&ts=1769053271"
Via
Other
1.1 heroku-router

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching