DNS Gurus
Cached · just now
19 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
Connection
Performance
close
Vary
Performance
Accept-Encoding

Caching Headers

4 headers
Cache-Control
Caching
no-store, no-cache, must-revalidate, proxy-revalidate
Etag
Caching
W/"daf2-WXAoQbKN9l/EMl+T5ehtNdBvKOw"
Expires
Caching
0
Pragma
Caching
no-cache

Content Headers

2 headers
Content-Length
Content
56050
Content-Type
Content
text/html; charset=utf-8

Server Headers

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

CORS Headers

0 headers
No CORS headers found

Cookies Headers

0 headers
No cookies headers found

Other Headers

9 headers
Date
Other
Tue, 13 Jan 2026 19:34:51 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=0h9LoyFbAUV6MvhtpxoHhKJ4rV5ukeSe7rZlDOHq%2F6w%3D\u0026sid=1b10b0ff-8a76-4548-befa-353fc6c6c045\u0026ts=1768332891"}],"max_age":3600}
Reporting-Endpoints
Other
heroku-nel="https://nel.heroku.com/reports?s=0h9LoyFbAUV6MvhtpxoHhKJ4rV5ukeSe7rZlDOHq%2F6w%3D&sid=1b10b0ff-8a76-4548-befa-353fc6c6c045&ts=1768332891"
Surrogate-Control
Other
no-store
Via
Other
1.1 heroku-router, 1.1 3e36dd267cb267a1625f6ecf58fe0bd2.cloudfront.net (CloudFront)
X-Amz-Cf-Id
Other
hBiiT7dabZiEzqJI1DkGRbO-A_7ZpG21mUYenulG1AQOUJMlFeo_hw==
X-Amz-Cf-Pop
Other
IAD61-P12
X-Cache
Other
Miss from cloudfront

Recommendations

Enable compression (gzip/brotli) to improve performance

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