DNS Gurus
Cached · just now
16 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

0 headers
No caching headers found

Content Headers

2 headers
Content-Length
Content
61
Content-Type
Content
application/json; charset=utf-8

Server Headers

0 headers
No server headers found

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
bm_sz=D7B9E96E06AB962AEC8168EB16F5189E~YAAQFxPVF1XoI8mbAQAAZIikBR5Di1vV/4EjvbDnwCfsUo9lzen1jiaf6pasG3nhF2cAMYWtA64FcNkl8kuCBXB4aD2LD+Tk4MT+PZnwdYwSA5RJA+fu8Pth/qJz7JlnSpcoT9j72GfXz/k9GXWpD1z7ocrUP362s51q380qZM8qdQ3FCiS/bF9rqc/6FIerrMwnQW3rBEL3GaAbk3dHkZlOqoqiRJCYc8VNZZURWzCQkm1WAiraecRV2VqcvaZfMruEaJ/cln3YP6lP1tWshD/lAtWf4RwKjUA+5NlY2vV1VYWjr7xXaGRrzvlnD+uzIoKvjz6X5HSyLQZbp39BtN548vX4xkplOSfNtydZ~3491393~3748151; Domain=.groupon.de; Path=/; Expires=Wed, 28 Jan 2026 21:26:34 GMT; Max-Age=14400

Other Headers

12 headers
Date
Other
Wed, 28 Jan 2026 17:26:34 GMT
X-B-Cookie
Other
7768318b-d30a-4c74-a831-8bd30a9c742e
X-Brand
Other
groupon
X-Envoy-Upstream-Service-Time
Other
2
X-External-Request-Id
Other
true
X-Forwarded-Proto
Other
https,https
X-Mtls-Upstream-Time
Other
0
X-Original-Request-Id
Other
5492d206-8d03-4185-a507-6b110a16eea2
X-Request-Id
Other
5492d206-8d03-4185-a507-6b110a16eea2
X-Request-Originated-From
Other
envoy-tls-side-car--ingress-https
X-Response-Served-From
Other
api-proxy--public--eu-west-1--conveyor-production49
X-Signifyd-Cookie
Other
71f92f61-93f4-4031-b92f-6193f470316a

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching