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=5EA75CAF6451CBE5E220F65A3F869533~000000000000000000000000000000~YAAQFmrcFwuXnt2bAQAAVr0rER6Z/jWFAUo5o+Xtmc8JpKf1iLUAYHgRvecqZuf6LO72+rN5x28GPzrNnicem/ai/fUJ1BEnDCMJWkHQ8Tz7LqwAcTDG2zAXCA6i033xFT1nMP7Mmfg9sfLJTkkL/L0F7S7jHSpFACms83nKJ3qQ48EhWeJuQYVwc8HezKz1jqxpjfns4R3Y6WE6ukhtpxE5zSFsOuG2ERrp6sybDy64O0D+hmlmH06SpCO3el1YM2L7KSOE1mKut26jKtPof5cOwOyLVtdrv+g/gPeTg8nrkgmKrfze0m+YlNHeSXqffMpa3pL0QlifkeBxRqokBrvBu6xn8ssXq9mPKwtLfEVtfWU8Zj55L9VcV8ON3/FVYtRGEGQId2mJUIIYgyM+T7xLlLyk; Domain=.groupon.com; Path=/; Expires=Sat, 31 Jan 2026 01:10:05 GMT; Max-Age=7200; HttpOnly

Other Headers

3 headers
Date
Other
Fri, 30 Jan 2026 23:10:05 GMT
Mime-Version
Other
1.0
X-Reference-Error
Other
18.166adc17.1769814605.7183f086

Recommendations

Enable compression (gzip/brotli) to improve performance