DNS Gurus
Open Cached · just now
18 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

1 headers
Vary
Performance
RSC, Next-Router-State-Tree, Next-Router-Prefetch, Next-Router-Segment-Prefetch, Accept-Encoding

Caching Headers

2 headers
Cache-Control
Caching
max-age=0, must-revalidate, no-cache, no-store, private
Expires
Caching
Tue, 11 Nov 2025 06:37:11 GMT

Content Headers

2 headers
Content-Length
Content
248149
Content-Type
Content
text/html; charset=utf-8

Server Headers

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

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
NEXT_LOCALE=cs; Path=/; SameSite=lax

Other Headers

10 headers
Alt-Svc
Other
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
Cache-Tag
Other
623819559784:sales-web
Cdn-Cache-Status
Other
miss
Date
Other
Tue, 11 Nov 2025 06:37:11 GMT
Link
Other
</_next/static/media/c9e6921c7fc300d8-s.p.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </logo.svg>; rel=preload; as="image", </i18n/cs/home/mockup.png>; rel=preload; as="image", </shared/home/mainhero-bg.png>; rel=preload; as="image", </shared/companies/cez_logo.svg>; rel=preload; as="image", </shared/companies/kiwi_logo.svg>; rel=preload; as="image", </shared/companies/mol_logo.svg>; rel=preload; as="image", </shared/companies/pb_logo-2.svg>; rel=preload; as="image", </shared/companies/tescan.svg>; rel=preload; as="image", </shared/companies/thermo-fisher.svg>; rel=preload; as="image"
Server-Timing
Other
l2gfet4t7; dur=79
Via
Other
1.1 google
X-Fah-Adapter
Other
nextjs-14.0.18
X-Fah-Middleware
Other
true
X-Middleware-Rewrite
Other
/cs

Recommendations

Enable compression (gzip/brotli) to improve performance

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

Analysis completed in 1563ms