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 api-content-au.dropbox.com, api-content-eu.dropbox.com, api-content-jp.dropbox.com, api-content-uk.dropbox.com, api-content.dropbox.com, api-content1-au.dropbox.com, api-content1-eu.dropbox.com, api-content1-jp.dropbox.com, api-content1-uk.dropbox.com, not for edge-block-api-env.dropbox-dns.com

Cached · just now
75/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 1
DigiCert logo DigiCert

Certificate Information

Subject
C=US, ST=California, L=San Francisco, O=Dropbox, Inc, CN=api-content-au.dropbox.com
Issuer
C=US, O=DigiCert Inc, CN=DigiCert Global G3 TLS ECC SHA384 2020 CA1
Valid From
February 10, 2026
Valid Until
March 12, 2027 333 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
2B:2F:FA:B5:66:B8:28:49:5E:4A:0C:8C:D8:F4:77:CC:13:D3:08:20:9F:D5:51:69:F1:5C:93:36:87:86:8D:D1
Alternative Names
15 domains

Security Configuration

TLS Protocols
TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
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

CAA Records (Certificate Authority Authorization)

CAA Records
Not Configured (Any CA can issue certificates)
CAA Issues
  • • No CAA records configured - any CA can issue certificates
Recommendations
  • • Implement CAA records to restrict which CAs can issue certificates for your domain
  • • This adds an extra layer of security against unauthorized certificate issuance
  • • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
  • • Consider adding 'iodef' record to receive security incident reports