DNS Gurus
Cached · just now
26 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Good
max-age=31536000; includeSubDomains
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer
Permissions-Policy
Missing
Not configured
Recommendations
  • • Consider adding 'preload' to HSTS for maximum security
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

2 headers
Accept-Ranges
Performance
bytes
Connection
Performance
close

Caching Headers

5 headers
Cache-Control
Caching
no-cache, no-store, must-revalidate
Etag
Caching
W/"aec-19b11e843a8"
Expires
Caching
0
Last-Modified
Caching
Fri, 12 Dec 2025 09:33:13 GMT
Pragma
Caching
no-cache

Content Headers

2 headers
Content-Length
Content
2796
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

9 headers
Date
Other
Sat, 10 Jan 2026 22:23:04 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=wP0SRboD8cdrPi68M1ylmTNgHXq7I%2F%2BjmlI7yhSB4vA%3D\u0026sid=929419e7-33ea-4e2f-85f0-7d8b7cd5cbd6\u0026ts=1768083784"}],"max_age":3600}
Reporting-Endpoints
Other
heroku-nel="https://nel.heroku.com/reports?s=wP0SRboD8cdrPi68M1ylmTNgHXq7I%2F%2BjmlI7yhSB4vA%3D&sid=929419e7-33ea-4e2f-85f0-7d8b7cd5cbd6&ts=1768083784"
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