Foundational models already contain the public internet up to their training cut-off. Re-stating facts the model already knows adds zero retrieval value. The engine has no reason to cite a page that tells it what it already believes.

Most GEO / AEO playbooks are written for global markets. The buyer prompts, citation sources, and authority vectors assume US / UK / EU media ecosystems. They break in Hong Kong.

A practitioner's view of the three platforms a HK B2B SaaS is most likely to evaluate. Comparison framework: instrumentation depth, engine coverage, HK-specific authority vectors, schema-level control, agent-analytics capability. Recommendation: the platform that wins for HK is the one that gives you parser-level control + multi-engine monitoring + HK authority-vector coverage. Most do not offer all three.