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 default.ssl.fastly.net, *.hosts.fastly.net, *.fastly.com, not for api.cartocdn.com

Cached · just now
7 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

2 headers
Accept-Ranges
Performance
bytes
Connection
Performance
keep-alive

Caching Headers

1 headers
Age
Caching
0

Content Headers

2 headers
Content-Length
Content
150
Content-Type
Content
text/html

Server Headers

0 headers
No server headers found

CORS Headers

0 headers
No CORS headers found

Cookies Headers

0 headers
No cookies headers found

Other Headers

2 headers
Date
Other
Tue, 06 Jan 2026 14:02:59 GMT
Fastly-Debug-Path
Other
(F cache-ewr-kewr1740026-EWR 1767708179)

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching