DNS Gurus
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23 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=31536000
Content-Security-Policy
Basic
default-src; script-src; style-src; +8 more
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer-when-downgrade
Permissions-Policy
Missing
Not configured
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Improve CSP by adding more specific directives and removing 'unsafe-inline'
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

3 headers
Connection
Performance
keep-alive
Transfer-Encoding
Performance
chunked
Vary
Performance
RSC, Next-Router-State-Tree, Next-Router-Prefetch, Next-Router-Segment-Prefetch, accept-encoding

Caching Headers

2 headers
Age
Caching
65868
Cache-Control
Caching
public, 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

0 headers
No cookies headers found

Other Headers

12 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9a05cfb6ac07e5e9-IAD
Date
Other
Tue, 18 Nov 2025 07:38:59 GMT
X-Gitbook-Route-Site
Other
docs.yiedl.ai/rci-competition/
X-Gitbook-Route-Type
Other
static
X-Gitbook-Target
Other
2v
X-Matched-Path
Other
/sites/static/[mode]/[siteURL]/[siteData]/[pagePath]
X-Nextjs-Prerender
Other
1
X-Nextjs-Stale-Time
Other
300
X-Vercel-Cache
Other
HIT
X-Vercel-Id
Other
iad1::iad1::jt96p-1763451539009-5f7d20d9028b

Recommendations

Enable compression (gzip/brotli) to improve performance

Analysis completed in 541ms