DNS Gurus
Cached · just now
28 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=C848EC660ED1F8AA48960931BFC6C8B9~YAAQFmrcF5O1ftubAQAAlqCfAR42Lo0OKnKORdBgg5ABcEYaT7rx3iwcd51hF2s/ZPmMmLbiXdrcrwzRr9uKjJcWjtVZDyfiv5SUDp/ESm3mAu2Uaj2YeUSe9s/gOsrldUPWhilUuneKRufjj4SGm8a/RKZCm7P+WjrQ60lB/rc7UO4K2s5xGp87h2UWgS0C5Lt4bn+Q/bQtJ3CZQKgBasrT46eXZChLbNBaHlg9g9jcP2LI6dAxVZL58YyIQJ6hQum8TdbJ3K2fcq3DcLaTm3RqG5cHIknQA3MWjJr0PgSyCWsn57Om3kLAMbcpS6akpHRVxGpkt5TqH0+AxFja5kGr2yGhwgun0OrP6YcWmw==~3488048~3683892; Domain=.groupon.com; Path=/; Expires=Wed, 28 Jan 2026 02:42:44 GMT; Max-Age=14400

Other Headers

19 headers
Date
Other
Tue, 27 Jan 2026 22:42:44 GMT
Server-Timing
Other
rReq;dur=401, rCon;dur=0, rHdr;dur=402, hbi;dur=382
X-Akamai-Transformed
Other
0 - 0 -
X-Application
Other
Pull-Itier
X-B-Cookie
Other
9a2634cb-0c37-4219-a634-cb0c37621963
X-B3-Traceid
Other
94e958349b4b41fa9cad6c3bb8fee641
X-Destination
Other
tls_conveyor_pull_itier
X-Envoy-Upstream-Service-Time
Other
402
X-External-Request-Id
Other
true
X-Forwarded-Proto
Other
https
X-Mtls-Upstream-Time
Other
382
X-Original-Request-Id
Other
94e95834-9b4b-41fa-9cad-6c3bb8fee641
X-Page-Id
Other
3964f819-fae0-4299-a4f8-19fae0829935-1769553764040-TH0
X-Request-Id
Other
94e95834-9b4b-41fa-9cad-6c3bb8fee641,94e95834-9b4b-41fa-9cad-6c3bb8fee641
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
3964f819-fae0-4299-a4f8-19fae0829935
X-Signifyd-Cookie
Other
23ec63d4-d11f-46b5-ac63-d4d11f76b51d
X-Ua-Compatible
Other
IE=edge,chrome=1

Recommendations

Enable compression (gzip/brotli) to improve performance