Open
Cached
·
just now
86/100
SECURITY SCORE
Detected Technologies
Apple ID
Let's Encrypt
PayPal
Adobe Fonts (Typekit)
AMP
Arkose Labs
Microsoft Advertising
Branch
Facebook
GeeTest
Google AdSense
Google Analytics
Google Cloud Storage
Google Conversion Tracking
Google DoubleClick
Google Fonts
Google Hosted Libraries
Google Maps
Google Pay
Google reCAPTCHA
Google Search
Google Static File Front End
Google Sign-In
Google Tag Manager
Mapbox
New Relic
Plaid
Stripe
Yahoo
Google Cloud
Certificate Information
Subject
CN=airbnbchina.cn
Issuer
C=US, O=Let's Encrypt, CN=YE2
Valid From
June 10, 2026
Valid Until
September 08, 2026
40 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
A3:AD:DA:1A:A4:49:CC:33:81:99:1E:45:E4:D8:AE:5E:AE:9C:08:E7:97:BB:F1:4C:E3:7C:89:E4:2E:39:B2:DB
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
HTTP Security Headers
Status
Strict-Transport-Security
Present
max-age=10886400; includeSubdomains
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • 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
Configured
(Restricts certificate issuance)
Current Issuer
Not Authorized
(Potential misconfiguration)
Authorized CAs
Incident Reporting
mailto:[email protected]
CAA Issues
- • CRITICAL: Current certificate issuer 'C=US, O=Let's Encrypt, CN=YE2' is NOT authorized by CAA records. Authorized CAs: digicert.com
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement
- • Consider adding 'issuewild' records to control wildcard certificate issuance