About

HZ is where I run systematic experiments on how AI answer engines — ChatGPT, Perplexity, Google AI Overviews and Claude — discover and cite web content, and publish every result openly: wins, failures, and the raw numbers.

Most AI SEO advice is asserted, not tested. The goal here is the opposite: controlled experiments, clear hypotheses, and data you can check. Each write-up links to the experiment it came from.

Run by Haobo. More about me and the method coming soon — in the meantime, the experiments log is the fastest way to see what's underway.