DNS Gurus
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11 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

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

Caching Headers

0 headers
No caching headers found

Content Headers

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

Server Headers

1 headers
Server
Server
Apache/2.4.52 (Ubuntu)

CORS Headers

0 headers
No CORS headers found

Cookies Headers

0 headers
No cookies headers found

Other Headers

6 headers
Date
Other
Tue, 27 Jan 2026 22:44:51 GMT
Link
Other
<https://www.datahash.com/>; rel=shortlink
Via
Other
1.1 3718533b4f5d67c52ce24dc2e8ef04b4.cloudfront.net (CloudFront)
X-Amz-Cf-Id
Other
1ChqN4MSNZi3ziuF1emlmSGcGaGFCI6AbBasd0qhDRn9oE0wO6oaKA==
X-Amz-Cf-Pop
Other
IAD55-P1
X-Cache
Other
Miss from cloudfront

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching