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 www.baidu.cn, baidu.cn, baidu.com, baidu.com.cn, w.baidu.com, ww.baidu.com, www.baidu.com.cn, www.baidu.com.hk, www.baidu.hk, not for bdstatic.com

Cached · just now
68/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 1
DigiCert logo DigiCert

Certificate Information

Subject
C=CN, ST=北京市, O=BeiJing Baidu Netcom Science Technology Co., Ltd, CN=www.baidu.cn
Issuer
C=US, O=DigiCert, Inc., CN=DigiCert Secure Site Pro G2 TLS CN RSA4096 SHA256 2022 CA1
Valid From
February 04, 2026
Valid Until
March 03, 2027 300 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
FC:E7:4E:F9:96:F7:3F:F8:95:2A:CA:F9:AD:B3:6B:B2:CA:4D:95:7C:87:27:30:C8:E6:AF:05:1C:EE:54:44:8E
Alternative Names
15 domains

Security Configuration

TLS Protocols
TLS 1.0 TLS 1.1 TLS 1.2
Forward Secrecy
Limited (Check cipher configuration)
Warnings
  • • TLS 1.3 is not supported (recommended)
  • • TLS 1.1 is deprecated and should be disabled
  • • TLS 1.0 is deprecated and should be disabled

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