DNS Gurus
Cached · just now
19 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Excellent
max-age=31536000; includeSubDomains; preload
Content-Security-Policy
Weak
frame-ancestors
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Significantly strengthen CSP directives
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • • 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
no-cache, no-store, max-age=0, must-revalidate

Content Headers

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

Server Headers

1 headers
Server
Server
cloudflare

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
_cfuvid=qiPbmyuUTZ9kgino8FRywBhH8gJAISfnDZclFvYhupM-1768379740955-0.0.1.1-604800000; path=/; domain=.blog.zero-one-group.com; HttpOnly; Secure; SameSite=None

Other Headers

9 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9bdbcd21a9a35813-IAD
Date
Other
Wed, 14 Jan 2026 08:35:40 GMT
Link
Other
<https://www.google.com>; rel="preconnect", <https://www.gstatic.com>; rel="preconnect", <https://glyph.medium.com/css/unbound.css>; as="style"; rel="preload"
Medium-Fulfilled-By
Other
edgy/8.15.0, valencia/main-20260113-172133-3c7232bd14, lite/main-20260113-163744-ed65ce2979, rito/main-20260113-220439-5efe839465, tutu/main-20260113-200527-0b43940394
Medium-Missing-Time
Other
201
X-Envoy-Upstream-Service-Time
Other
501
X-Request-Received-At
Other
1768379740495

Recommendations

Enable compression (gzip/brotli) to improve performance