DNS Gurus
Cached · just now
27 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=15768000
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • 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
Transfer-Encoding
Transfer-Encoding
Performance
chunked
Vary
Performance
Accept-Encoding, User-Agent

Caching Headers

1 headers
Cache-Control
Caching
private, max-age=0, no-cache, no-store, must-revalidate

Content Headers

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

Server Headers

1 headers
Server
Server
Groupon

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
bm_sz=8B2BC3703B4E576AA9F8AAE5A12193DC~YAAQhZs+F2YyKuWbAQAA9hdo+R5rgIwQsQuQY1IMNEg1E0XmyVZqDJRSeNKAAB+pZXukVAUyDeaXfuYY9YmND42ZArKNK3k8CAAiV5VgzJ8hw/JXs9VJt11BRYC7s6ziagf+Ge5gv/8uisd4gf+lWrUh0ek5oX/VgT3fxUGxXCPxZvxqR8g1j4kImMDunhtiXraFA842aw3dOzzW3JaryCKPttr35fYP3UxlD8iHLwQmnDQNFcD/BNs/+/tAUiItBQ1N1LOSk0RA7f4lPo51jF7JuutNnYjwD3N/Ly0D0iHQGoQ/qSTKqtJnToFGzZoZTWfwPI57m/if6Ar5Kgc41HnsUftHswRCuAO28jN+Iw==~3618625~3425593; Domain=.groupon.com; Path=/; Expires=Mon, 26 Jan 2026 12:25:06 GMT; Max-Age=14399

Other Headers

18 headers
Date
Other
Mon, 26 Jan 2026 08:25:07 GMT
Server-Timing
Other
rReq;dur=429, rCon;dur=0, rHdr;dur=429, hbi;dur=412
X-Akamai-Transformed
Other
0 - 0 -
X-Application
Other
Pull-Itier
X-B-Cookie
Other
2d4dbbb4-78b6-43c0-8dbb-b478b643c08c
X-B3-Traceid
Other
710d0bcfeed649feb091dd6b6d6977c1
X-Destination
Other
tls_conveyor_pull_itier
X-Envoy-Upstream-Service-Time
Other
430
X-External-Request-Id
Other
true
X-Forwarded-Proto
Other
https
X-Mtls-Upstream-Time
Other
412
X-Original-Request-Id
Other
710d0bcf-eed6-49fe-b091-dd6b6d6977c1
X-Request-Id
Other
710d0bcf-eed6-49fe-b091-dd6b6d6977c1,710d0bcf-eed6-49fe-b091-dd6b6d6977c1
X-Request-Originated-From
Other
envoy-tls-side-car--ingress-https
X-Response-Served-From
Other
routing-service--public--us-central1--default--conveyor-gcp-production2
X-S-Cookie
Other
ae716b75-abe1-4a4f-b16b-75abe1aa4ff1
X-Signifyd-Cookie
Other
117b4c7d-cae6-496f-bb4c-7dcae6096f5f
X-Ua-Compatible
Other
IE=edge,chrome=1

Recommendations

Enable compression (gzip/brotli) to improve performance