DNS Gurus
Cached · just now
18 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
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
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • 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

3 headers
Connection
Performance
close
Transfer-Encoding
Performance
chunked
Vary
Performance
Accept-Encoding,Cookie

Caching Headers

3 headers
Cache-Control
Caching
max-age=600, must-revalidate
Expires
Caching
Thu, 19 Nov 1981 08:52:00 GMT
Pragma
Caching
no-cache

Content Headers

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

Server Headers

1 headers
Server
Server
cloudflare

CORS Headers

1 headers
Access-Control-Allow-Origin
Cors
http://www.smtp2go.com/

Cookies Headers

1 headers
Set-Cookie
Cookies
__cf_bm=y99UutVPazwkXe.Z0aarOrurpM4_Cr_qsHIwz2FQshw-1768154689-1.0.1.1-moj8N2EBMCov0ViuB3FmjtmSOBE0eJ86SJOLBy6nlW2184EUmMTHddeiONA6.H77s_70nLiFHCm5zYeX_iyt0VMEpHha7RVJnPDmoD7lmNU; path=/; expires=Sun, 11-Jan-26 18:34:49 GMT; domain=.www.smtp2go.com; HttpOnly; Secure; SameSite=None

Other Headers

8 headers
Alt-Svc
Other
h3=":443"; ma=86400
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9bc656b72ee7f26e-IAD
Date
Other
Sun, 11 Jan 2026 18:04:49 GMT
Link
Other
<https://www.smtp2go.com/wp-json/wp/v2/pages/6>; rel="alternate"; title="JSON"; type="application/json"
X-Cache
Other
HIT: 81
X-Cache-Group
Other
normal
X-Cacheable
Other
SHORT

Recommendations

Enable compression (gzip/brotli) to improve performance