DNS Gurus
Cached · just now
16 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=15552000; includeSubDomains; preload
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
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 Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

1 headers
Connection
Performance
close

Caching Headers

1 headers
Etag
Caching
W/"a4bb-mmnuXzuuLUApawBg2jQne3orCrY"

Content Headers

2 headers
Content-Length
Content
42171
Content-Type
Content
text/html; charset=utf-8

Server Headers

2 headers
Server
Server
cloudflare
X-Powered-By
Server
Express

CORS Headers

0 headers
No CORS headers found

Cookies Headers

0 headers
No cookies headers found

Other Headers

7 headers
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9bca821a1ee75886-IAD
Date
Other
Mon, 12 Jan 2026 06:13:29 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=NlcWWKUQubXhKCMg7d34NQ3fGehz8OynZam3xMMs5IU%3D\u0026sid=c46efe9b-d3d2-4a0c-8c76-bfafa16c5add\u0026ts=1768198409"}],"max_age":3600}
Reporting-Endpoints
Other
heroku-nel="https://nel.heroku.com/reports?s=NlcWWKUQubXhKCMg7d34NQ3fGehz8OynZam3xMMs5IU%3D&sid=c46efe9b-d3d2-4a0c-8c76-bfafa16c5add&ts=1768198409"
Via
Other
1.1 heroku-router

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching

Consider removing X-Powered-By header to hide server technology