DNS Gurus
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16 Headers

Detected Technologies from Headers

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HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=31536000; preload
Content-Security-Policy
Weak
frame-ancestors
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Significantly strengthen CSP directives
  • • 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
user-agent,accept-encoding

Caching Headers

3 headers
Cache-Control
Caching
no-cache, must-revalidate
Etag
Caching
W/"-275423415"
Expires
Caching
Thu, 01 Jan 1970 00:00:00 GMT

Content Headers

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

Server Headers

1 headers
Server
Nginx logo
Server
nginx

CORS Headers

0 headers
No CORS headers found

Cookies Headers

0 headers
No cookies headers found

Other Headers

4 headers
D-Cache
Other
from-cache
D-Geo
Other
US
Date
Other
Fri, 13 Feb 2026 21:34:19 GMT
Speculation-Rules
Other
"https://static.cdn-website.com/speculations/rules/prerender-1.0.3.json"

Recommendations

Enable compression (gzip/brotli) to improve performance