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 *.internal.office365.us, *.office365.us, *.outlook.office365.us, attachments.office365-net.us, attachments-dod.office365-net.us, bookings.office365.us, delve.office365.us, edge.outlook.office365.us, img.delve.office365.us, not for mail.percsolutions.com

Cached · just now
17 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

0 headers
No performance headers found

Caching Headers

0 headers
No caching headers found

Content Headers

1 headers
Content-Length
Content
0

Server Headers

1 headers
X-Powered-By
Server
ASP.NET

CORS Headers

0 headers
No CORS headers found

Cookies Headers

0 headers
No cookies headers found

Other Headers

15 headers
Alt-Svc
Other
h3=":443";ma=2592000,h3-29=":443";ma=2592000
Date
Other
Thu, 22 Jan 2026 23:16:26 GMT
Ms-Cv
Other
AxuOzLH7O4II+slFmaAA6g.1
Request-Id
Other
cc8e1b03-fbb1-823b-08fa-c94599a000ea
X-Backendhttpstatus
Other
417
X-Bepartition
Other
Clique/CLNAMP110PHX00
X-Besku
Other
UNKNOWN
X-Calculatedbetarget
Other
PH1P110MB1377.NAMP110.PROD.OUTLOOK.COM
X-Feefzinfo
Other
PHX
X-Feproxyinfo
Other
PH3P110CA0042.NAMP110.PROD.OUTLOOK.COM
X-Feserver
Other
PH3P110CA0042
X-Firsthopcafeefz
Other
PHX
X-Preferredroutingkeydiagnostics
Other
0
X-Proxy-Backendserverstatus
Other
417
X-Proxy-Routingcorrectness
Other
1

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching

Consider removing X-Powered-By header to hide server technology