DNS Gurus
Cached · just now
19 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=31536000
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Excellent
deny
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
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • 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

0 headers
No caching headers found

Content Headers

0 headers
No content headers found

Server Headers

1 headers
Server
Server
cloudflare

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
_cfuvid=r3W8N_i84Z0ZbRDURMqrG_XOPTGocDJ3hZutYUFPNLE-1768306693630-0.0.1.1-604800000; path=/; domain=.hub.docker.com; HttpOnly; Secure; SameSite=None

Other Headers

11 headers
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9bd4d5c29ddbc95a-IAD
Date
Other
Tue, 13 Jan 2026 12:18:13 GMT
Location
Other
https://login.docker.com/authorize?response_type=code&client_id=lve9GGl8JtSUrneQ1EVuC0lbjHdi9nb9&redirect_uri=https%3A%2F%2Fhub.docker.com%2Fauth%2Fcallback&state=buVfycQlnJpGmC-KuytGZIpuACFV3oKwy8t8U0z8DXc&code_challenge_method=S256&code_challenge=jzzCBbpwQ3m5yn0TEMkbLpXeCKKKOq90A6Ysa1f0j9k&scope=offline_access+openid&audience=https%3A%2F%2Fhub.docker.com
X-Auth-Diag
Other
7
X-Docker-App-Version
Other
v7617
X-Ratelimit-Ip
Other
216.246.40.66
X-Ratelimit-Limit
Other
180
X-Ratelimit-Remaining
Other
178
X-Ratelimit-Reset
Other
1768306753
X-Trace-Id
Other
9338cb32afa24ff9894da367824b9170

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching