DNS Gurus
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11 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
Connection
Performance
close

Caching Headers

3 headers
Cache-Control
Caching
max-age=0, no-cache, no-store
Expires
Caching
Fri, 30 Jan 2026 11:18:13 GMT
Pragma
Caching
no-cache

Content Headers

2 headers
Content-Length
Content
243
Content-Type
Content
application/xml

Server Headers

1 headers
Server
Server
AmazonS3

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
bm_sz=DFC79180B4606E812B62527AE0D6AAA4~YAAQu2QwF9T5/AGcAQAAqQGgDh4OYr/TYHEE/H6jVe2S+leHjtdks5xJauXXMe8eMcFON2ZKn6jsW3Gke0/GPHiNjgzSMys9T6VC4VCSVUXBUAmBg97S2hmU2su0K+58YvXlJx6o1mK6B0IkWQPuGiCqujskGPvsAZaNcUFuG4TF7xvDu7+oR9e6rUtNLRzGfsZDdKdNwwzjqCraQlC0cJIV5XNg6BUy4zBUfExRJXcEjFcM3e4U2InKUVoJTbKQ4KjIPASMF3XqXdOcRLu5q4pXVexqM7JIoBpUDFomWj04li6erFOiuqN/iRSRMMNFqg+BzfwX7SW7f1V2OvBYu0yjc/vrTDTqgce2Cj3Z~3552048~3618353; Domain=.groupon.pl; Path=/; Expires=Fri, 30 Jan 2026 15:18:12 GMT; Max-Age=14399

Other Headers

3 headers
Date
Other
Fri, 30 Jan 2026 11:18:13 GMT
X-Amz-Id-2
Other
O4vmgM8jTqihmW4crQ+fxvXEp9IYqALF1IHC+dheR+yJUTS4LPYGNd0rYVbk/ICUuMDuBknXDV0=
X-Amz-Request-Id
Other
S0PX9183CKP50Q0G

Recommendations

Enable compression (gzip/brotli) to improve performance