It's frustrating when tools provide inconsistent metrics, especially when those metrics influence important decisions like purchasing a domain. The discrepancy between the MOZ API and the homepage might stem from data sync issues or differences in how they display information. The "NO DATA" on the homepage could indicate insufficient crawl history or indexing issues, while the API might be pulling outdated or limited data.
It's worth contacting MOZ support to clarify this, as they can provide insight into why this happens. Meanwhile, cross-referencing with other tools like Ahrefs or SEMrush is always a good practice to get a more holistic view. As someone who often collaborates with professionals like content writers Melbourne for domain projects, I understand how vital accurate data is for informed decisions. Hopefully, you can get to the bottom of this with MOZ's assistance!