DNS Gurus
Cached · just now
19 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
sameorigin
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-Content-Type-Options: nosniff
  • • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

2 headers
Connection
Performance
close
Transfer-Encoding
Performance
chunked

Caching Headers

4 headers
Cache-Control
Caching
private, no-cache, no-store, must-revalidate, post-check=0, pre-check=0
Expires
Caching
Sun, 25 Jan 2026 10:04:30 GMT
Last-Modified
Caching
Sun, 25 Jan 2026 10:04:30 GMT
Pragma
Caching
no-cache

Content Headers

2 headers
Content-Language
Content
en
Content-Type
Content
text/html; charset=UTF-8

Server Headers

2 headers
Server
Server
cloudflare
X-Powered-By
Server
PHP/7.4.33

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
roundcube_sessid=6bf5a939b63fe5fd5580836abd9f56d4; path=/; HttpOnly

Other Headers

7 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9c36f2621ffed6fd-IAD
Date
Other
Sun, 25 Jan 2026 10:04:30 GMT
Nel
Other
{"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Report-To
Other
{"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=PUCPcUzznA1VHVz1YkKtL4PFMsYMmo099NyKWKK%2FHg0zOMXsY8irBNSVPgQWADbbAGcVHF7XhfmpqCoM6f6jnjQFuIR38%2FAyype84uHoL5fGhFpM"}]}
Server-Timing
Other
cfEdge;dur=85,cfOrigin;dur=16

Recommendations

Enable compression (gzip/brotli) to improve performance

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