DNS Gurus
Cached · just now
21 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Good
default-src; font-src; img-src; +4 more
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • Strengthen CSP by removing 'unsafe-eval'
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

1 headers
Connection
Performance
close

Caching Headers

2 headers
Cache-Control
Caching
max-age=0, private, must-revalidate
Etag
Caching
W/"e5c47783d28701cc3751afb104903b33"

Content Headers

2 headers
Content-Length
Content
3540
Content-Type
Content
text/html; charset=utf-8

Server Headers

2 headers
Server
Server
Heroku
X-Runtime
Server
0.008404

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
heroku-session-affinity=Q38DAQERU3RpY2t5U2Vzc2lvbkRhdGEB/4AAAQMBBUFwcElEAQwAAQhEeW5vTmFtZQEMAAEJRHlub0NvdW50AQQAAAAM/4ACBXdlYi4yAQQAYN44nqKK9cMP727ibrooaaWN9xwUhvkVj7cz01ghBJU=

Other Headers

8 headers
Date
Other
Tue, 10 Feb 2026 16:31:45 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=FTReNbKk6XAlKztoAhslz%2B48TO5lHGsXW4jZOMQRSEU%3D\u0026sid=1b10b0ff-8a76-4548-befa-353fc6c6c045\u0026ts=1770741105"}],"max_age":3600}
Reporting-Endpoints
Other
heroku-nel="https://nel.heroku.com/reports?s=FTReNbKk6XAlKztoAhslz%2B48TO5lHGsXW4jZOMQRSEU%3D&sid=1b10b0ff-8a76-4548-befa-353fc6c6c045&ts=1770741105"
Via
Other
1.1 heroku-router
X-Download-Options
Other
noopen
X-Permitted-Cross-Domain-Policies
Other
none
X-Request-Id
Other
ec7bbc88-9b98-2c3c-64ee-68b01f80ddc7

Recommendations

Enable compression (gzip/brotli) to improve performance