DNS Gurus
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28 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Good
max-age=31536000; includeSubDomains
Content-Security-Policy
Good
frame-ancestors; default-src; base-uri; +8 more
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
  • • Strengthen CSP by removing 'unsafe-eval'
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

3 headers
Connection
Performance
close
Transfer-Encoding
Performance
chunked
Vary
Performance
Accept-Encoding

Caching Headers

1 headers
Etag
Caching
W/"b-Ai2R8hgEarLmHKwesT1qcY913ys"

Content Headers

1 headers
Content-Type
Content
application/json; charset=utf-8

Server Headers

1 headers
Server
Server
cloudflare

CORS Headers

1 headers
Access-Control-Allow-Origin
Cors
*

Cookies Headers

0 headers
No cookies headers found

Other Headers

13 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9c2a190fec447af0-IAD
Date
Other
Fri, 23 Jan 2026 20:38:59 GMT
Fly-Request-Id
Other
01KFP99SG324CCQE5PHTJSG3NK-iad
Nel
Other
{"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Origin-Agent-Cluster
Other
?1
Report-To
Other
{"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=KDeioewr9BmOk9IwVxV7lcNh1zB4ZXlk7pxqAzP2wJjgOOeFHvOwXgvY2c5X7AmLr6TehcGEyPXAQJ6w25Tp4E77YR2EwAsrGod9YlHuO6U%3D"}]}
Server-Timing
Other
cfEdge;dur=14,cfOrigin;dur=40
Via
Other
1.1 fly.io, 1.1 fly.io
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