DNS Gurus
Cached · just now
23 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=15552000; includeSubDomains
Content-Security-Policy
Good
default-src; base-uri; font-src; +8 more
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer
Permissions-Policy
Missing
Not configured
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Strengthen CSP by removing 'unsafe-eval'
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

2 headers
Connection
Performance
close
Vary
Performance
Origin

Caching Headers

0 headers
No caching headers found

Content Headers

2 headers
Content-Length
Content
9
Content-Type
Content
text/plain; 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

9 headers
Date
Other
Sat, 31 Jan 2026 14:10:27 GMT
Nel
Other
{"report_to":"heroku-nel","response_headers":["Via"],"max_age":3600,"success_fraction":0.01,"failure_fraction":0.1}
Origin-Agent-Cluster
Other
?1
Report-To
Other
{"group":"heroku-nel","endpoints":[{"url":"https://nel.heroku.com/reports?s=1lurogVH%2F12y87kKlG6W2zdqK%2Bg0uejfnG8ZssiQV2s%3D\u0026sid=e11707d5-02a7-43ef-b45e-2cf4d2036f7d\u0026ts=1769868627"}],"max_age":3600}
Reporting-Endpoints
Other
heroku-nel="https://nel.heroku.com/reports?s=1lurogVH%2F12y87kKlG6W2zdqK%2Bg0uejfnG8ZssiQV2s%3D&sid=e11707d5-02a7-43ef-b45e-2cf4d2036f7d&ts=1769868627"
Via
Other
1.1 heroku-router
X-Dns-Prefetch-Control
Other
off
X-Download-Options
Other
noopen
X-Permitted-Cross-Domain-Policies
Other
none

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching