DNS Gurus
Cached · just now
26 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=259200; includeSubDomains
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
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • 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

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

Caching Headers

1 headers
Cache-Control
Caching
max-age=0, public

Content Headers

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

Server Headers

2 headers
Server
Server
cloudflare
X-Runtime
Server
0.316029

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
_cfuvid=oIaOizjPbIZ8wc9vlE4N4bi2h74ItUst2mrobbDn.PQ-1768625084089-0.0.1.1-604800000; path=/; domain=.support.crossref.org; HttpOnly; Secure; SameSite=None

Other Headers

14 headers
Cf-Cache-Status
Other
REVALIDATED
Cf-Ray
Other
9bf332f67e8ad6a8-IAD
Date
Other
Sat, 17 Jan 2026 04:44:44 GMT
Nel
Other
{"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}
Protocol
Other
HTTP/1.1 always
Report-To
Other
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=GoRrLWv2Wti0w4CiMqVz0kB9xha1XRDeKFox3URwXUC1wLI5aH3WonVnbjK4eXvx3mZJr5nQsZ3T0AHTmsvfNfwuSoGwHGRMIMEmXQzSStRBW%2BpQmz1%2FNv3d7vcUFJEIFmsHvsx%2F"}],"group":"cf-nel","max_age":604800}
Via
Other
zorg
X-Envoy-Decorator-Operation
Other
/hc
X-Envoy-Upstream-Service-Time
Other
320
X-Request-Id
Other
9be5d952f732132d-ORD
X-Ua-Compatible
Other
IE=edge
X-Zendesk-Origin-Server
Other
app-server-6f7c79f5c5-hc6lg
X-Zendesk-Zorg
Other
yes
Zendesk-Service
Other
help-center

Recommendations

Enable compression (gzip/brotli) to improve performance