DNS Gurus

SSL Verification Bypassed

The server's SSL certificate could not be verified. The analysis was completed using insecure mode. Data may be less reliable.

Reason:

Hostname Mismatch - certificate is issued for a248.e.akamai.net, *.akamaized.net, *.akamaized-staging.net, *.akamaihd.net, *.akamaihd-staging.net, not for grouponacademy.com

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=1C988800CD66A9A5C2601C0C3769F223~YAAQm2ncF4CvJgGcAQAAnSb2Ch6HhLSfhfypJqHNPdaL+EZZy7ub7l7kIBJoOkT1tfLhDnptifg/zc/sBMXFWEspC3sUy8LHzvX0Bi3b6smcKBbLiX4ArKwWbfjDjpQi2qjHbwNncbL65adGwmEshYqYK4lxu6ir6NTRFZANChX84pwOl4cPUs2uIeTubYZpoBAThsEJ8gdYSVtbAxCh+GeQePvjecDmzrfW8WrHWaWF2N/151WNZDfqKZ0h9/NqKtV4KyZm85PDL9X39SGrBSj6sZQxd8La1V1XxToT3w3mV12eba3UiAckiVLqSZgQaOyolxA+iNciWPnp1lq78/6+d8hWDAm5L+ufCezBUQ==~3158069~3223606; Domain=.groupon.com; Path=/; Expires=Thu, 29 Jan 2026 22:13:49 GMT; Max-Age=14400

Other Headers

18 headers
Date
Other
Thu, 29 Jan 2026 18:13:49 GMT
Server-Timing
Other
rReq;dur=327, rCon;dur=0, rHdr;dur=327, hbi;dur=298
X-Akamai-Transformed
Other
0 - 0 -
X-Application
Other
Pull-Itier
X-B-Cookie
Other
2e2feb0b-384b-4ba7-afeb-0b384b3ba7f1
X-B3-Traceid
Other
5da8082b2eec49b9953cfe451df3857a
X-Destination
Other
tls_conveyor_pull_itier
X-Envoy-Upstream-Service-Time
Other
328
X-External-Request-Id
Other
true
X-Forwarded-Proto
Other
https
X-Mtls-Upstream-Time
Other
298
X-Original-Request-Id
Other
5da8082b-2eec-49b9-953c-fe451df3857a
X-Request-Id
Other
5da8082b-2eec-49b9-953c-fe451df3857a,5da8082b-2eec-49b9-953c-fe451df3857a
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
52a47735-40b7-4733-a477-3540b75733fe
X-Signifyd-Cookie
Other
4fa7add5-9af7-44f7-a7ad-d59af774f78b
X-Ua-Compatible
Other
IE=edge,chrome=1

Recommendations

Enable compression (gzip/brotli) to improve performance