How these topics connect.

The site is built so search engines can connect one consistent identity with the same public technical surface: the homepage, GitHub profile, article archive, project case studies, and system design documentation. The goal is not to rank for every broad technology term immediately. The realistic goal is to make searches like “Haitao Zheng cyber security”, “郑海涛 网络安全”, “Tao Zheng cloud security”, or project-specific searches lead back to the same portfolio over time.

For broad keywords such as cyber security or IT technology, the strongest signal comes from useful technical writing, public GitHub work, clear page titles, and repeated external references to the same domain. This page acts as a clean index for the terms this site actually covers.