DNS Gurus
Cached · just now
21 Headers

Detected Technologies from Headers

See all in URL Inspect 2
Cloudflare CDN logo Cloudflare CDN Express logo Express

HTTP Security Headers

Status
Strict-Transport-Security
Excellent
max-age=31536000; includeSubDomains; preload
Content-Security-Policy
Weak
frame-ancestors
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Significantly strengthen CSP directives
  • • 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

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

Caching Headers

2 headers
Cache-Control
Caching
no-cache
Etag
Caching
W/"157b1-5bhn4TlMgJQ6YnFy8Brcrq3kpDs"

Content Headers

1 headers
Content-Type
Content
text/html; charset=utf-8

Server Headers

2 headers
Server
Cloudflare CDN logo
Server
cloudflare
X-Powered-By
Express logo
Server
Express

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
__cf_bm=96LoYR2edCPxQEc5RcW86oolYLKf3MLCwSrs.ykKgj4-1770974640-1.0.1.1-g8DkzDnoEzBn9X_D1AFN8208UEOIWDdFTVUytdS1LAH4_PYK8vLKQRSveg4KiH8ASEBFskWOtB3RRl_oR8VBYkocCJk8lh26nAoUp4g1ZOo; path=/; expires=Fri, 13-Feb-26 09:54:00 GMT; domain=.amialigned.com; HttpOnly; Secure; SameSite=None

Other Headers

10 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Cloudflare CDN logo
Other
EXPIRED
Cf-Ray
Cloudflare CDN logo
Other
9cd345273fe51f6d-IAD
Date
Other
Fri, 13 Feb 2026 09:24:00 GMT
Link
Other
<https://substackcdn.com>; rel=preconnect
X-Cluster
Other
substack
X-Deploy
Other
949e64b15a
X-Served-By
Other
Substack
X-Service
Other
web
X-Sub
Other
amialigned

Recommendations

Enable compression (gzip/brotli) to improve performance

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