Thirdparty.aliexpress.com -

Thirdparty.aliexpress.com is an official, secure backend subdomain utilized by the Alibaba Group for Single Sign-On (SSO), third-party authentication, and affiliate linking. It facilitates secure connections between user accounts and external tools, such as dropshipping management platforms or social media login systems. For troubleshooting or to review security settings, users can manage permissions in their AliExpress Account Settings.

Security and Privacy of Social Logins - Ruhr-Universität Bochum thirdparty.aliexpress.com