DNS Gurus
Cached · just now
23 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Excellent
max-age=31536000; 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
  • • 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

3 headers
Accept-Ranges
Performance
bytes
Connection
Performance
close
Vary
Performance
Accept-Encoding

Caching Headers

4 headers
Age
Caching
493617
Cache-Control
Caching
public, max-age=3600
Etag
Caching
W/"3ce1-19b325da6c8"
Last-Modified
Caching
Thu, 18 Dec 2025 16:49:17 GMT

Content Headers

2 headers
Content-Length
Content
15585
Content-Type
Content
text/html; charset=UTF-8

Server Headers

1 headers
Server
Server
cloudflare

CORS Headers

0 headers
No CORS headers found

Cookies Headers

0 headers
No cookies headers found

Other Headers

9 headers
Cf-Apo-Via
Other
origin,host
Cf-Cache-Status
Other
HIT
Cf-Ray
Other
9b6a5ad22b491759-IAD
Date
Other
Wed, 31 Dec 2025 14:09:27 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=nAXnSug7cIYE%2BRRzJ41W4BghyD3b3Ir0DHgGUB%2BVSbk%3D\u0026sid=812dcc77-0bd0-43b1-a5f1-b25750382959\u0026ts=1766091577"}],"max_age":3600}
Reporting-Endpoints
Other
heroku-nel="https://nel.heroku.com/reports?s=nAXnSug7cIYE%2BRRzJ41W4BghyD3b3Ir0DHgGUB%2BVSbk%3D&sid=812dcc77-0bd0-43b1-a5f1-b25750382959&ts=1766091577"
Via
Other
1.1 heroku-router
X-Download-Options
Other
noopen

Recommendations

Enable compression (gzip/brotli) to improve performance