DNS Gurus
Cached · just now
21 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Good
max-age=31536000; includeSubDomains;
Content-Security-Policy
Basic
default-src
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer-when-downgrade
Permissions-Policy
Missing
Not configured
Recommendations
  • • Consider adding 'preload' to HSTS for maximum security
  • • Improve CSP by adding more specific directives and removing 'unsafe-inline'
  • • 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

4 headers
Cache-Control
Caching
max-age=3138, public
Etag
Caching
"483dcdf4f8c8e40ff5e51201ff2ad295"
Last-Modified
Caching
Mon, 12 Jan 2026 15:59:44 GMT
Pragma
Caching
public

Content Headers

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

Server Headers

0 headers
No server headers found

CORS Headers

1 headers
Access-Control-Allow-Origin
Cors
*

Cookies Headers

0 headers
No cookies headers found

Other Headers

5 headers
Date
Other
Mon, 12 Jan 2026 16:07:26 GMT
Feature-Policy
Other
camera 'none'
Link
Other
<https://centuria.pl/>; rel=shortlink
X-Dns-Prefetch-Control
Other
off
X-Download-Option
Other
noopen

Recommendations

Enable compression (gzip/brotli) to improve performance