DNS Gurus
Cached · just now
17 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Missing
Not configured
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-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • • 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
RSC, Next-Router-State-Tree, Next-Router-Prefetch, accept-encoding

Caching Headers

0 headers
No caching headers found

Content Headers

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

Server Headers

2 headers
Server
Server
cloudflare
X-Powered-By
Server
Next.js

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
NEXT_LOCALE=en; Path=/; Expires=Tue, 05 Jan 2027 05:43:10 GMT; Max-Age=31536000; SameSite=strict

Other Headers

10 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9b90a81399a10596-IAD
Date
Other
Mon, 05 Jan 2026 05:43:11 GMT
Link
Other
<https://caomingjun.com/>; rel="alternate"; hreflang="en", <https://caomingjun.com/zh-CN>; rel="alternate"; hreflang="zh-CN", <https://caomingjun.com/>; rel="alternate"; hreflang="x-default"
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=ypYd4VDpovwEmV3PGMZATys52elfQRcQyP8PHGIKYY0EMTUKrRpZVYUoj1FsadOFt%2F5wFad9r7J46Qu%2FeiSMHbPTUQlx5d5ztKiu7n9O"}]}
Server-Timing
Other
cfEdge;dur=9,cfOrigin;dur=396
X-Edge-Runtime
Other
1
X-Matched-Path
Other
/[locale]

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching

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