DNS Gurus
Open Cached · just now
88/100 SECURITY SCORE

Certificate Information

Subject
C=CN, ST=Jiangsu, L=Nanjing, O=Huawei Software Technologies Co., Ltd., CN=developer.huawei.com
Issuer
C=BE, O=GlobalSign nv-sa, CN=GlobalSign ECC OV SSL CA 2018
Valid From
July 01, 2025
Valid Until
August 02, 2026 253 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
07:B2:47:25:D0:0F:EA:6E:C9:98:05:6D:FC:9D:DE:9A:05:15:31:CF:47:4A:9E:43:BE:29:98:2C:3D:1E:BD:06
Alternative Names
6 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
Good
max-age=31536000; includeSubDomains
Content-Security-Policy
Basic
script-src; frame-ancestors
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Consider adding 'preload' to HSTS for maximum security
  • • Improve CSP by adding more specific directives and removing 'unsafe-inline'
  • • 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