DNS Gurus
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12 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=15768000
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
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • 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

2 headers
Connection
Performance
close
Vary
Performance
Accept-Encoding, User-Agent

Caching Headers

2 headers
Cache-Control
Caching
no-cache, no-store, must-revalidate
Expires
Caching
0

Content Headers

2 headers
Content-Length
Content
2138
Content-Type
Content
text/html

Server Headers

1 headers
Server
Server
Groupon

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
ak_bmsc=8002D04A443D3F24340B3DCDCB45E625~000000000000000000000000000000~YAAQm2ncFyPwmr2bAQAAyXzl+x7CbDciGsRCWFkHCRnEvVOsgAHCvIEwhMSMPxVOch270cIvVnGwJ7E7Bgazj/db/Utwx+uH2wRnMxDju1AjpY6Q32pD6cLBnsfu+LR9cqsu+BpkETD6xf3K6lc4q4c5HcQP9rm7rUsOjRwCrElemW9q4/TPT8uf8LRHIGKQ6bmpmNbZ2oKUYJpq+AhCXNwJSD1vGDaXdT7uRINow42i3BtYf+bl7VprurtXtfB3omG/FVClKyp8QqKE3bN+1ZnMXnA0o/oxo1ZW/jwg2czYS3Vrr2OBKjYFbv11wOBTVFSShGAhwb+3DBYPu+B0CszZ29ma3R284vjX1//glKZma0c1lA1+DPFsL3bNCxx+cJt1GPvxnzksYvdrXjfZrHyez1XV; Domain=.groupon.com; Path=/; Expires=Mon, 26 Jan 2026 22:01:19 GMT; Max-Age=7200; HttpOnly

Other Headers

3 headers
Date
Other
Mon, 26 Jan 2026 20:01:19 GMT
Mime-Version
Other
1.0
X-Reference-Error
Other
18.9b69dc17.1769457679.a8c9a37c

Recommendations

Enable compression (gzip/brotli) to improve performance