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 *.appnexus.com, appnexus.com, not for api.vntsm.com

Cached · just now
8 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

1 headers
Connection
Performance
keep-alive

Caching Headers

0 headers
No caching headers found

Content Headers

1 headers
Content-Length
Content
0

Server Headers

1 headers
Server
Server
nginx/1.25.5

CORS Headers

0 headers
No CORS headers found

Cookies Headers

0 headers
No cookies headers found

Other Headers

5 headers
An-Served-By
Other
hbapi-proxy-production-6947d55cfc-p4v87
Date
Other
Mon, 12 Jan 2026 11:34:19 GMT
X-B3-Sampled
Other
0
X-B3-Spanid
Other
6bbe995bd50c7a65
X-B3-Traceid
Other
7fb6c9a515d888885ed715766f27620c

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching