Superbad Index -

For advanced users to audit their book’s external metadata and backlinks.

If you aren't using a dedicated KDP keyword research tool, you can approximate the Superbad Index by following these steps: superbad index

Useful for rapid URL indexing if you have an external blog driving traffic to your KDP books. For advanced users to audit their book’s external

But we made a mistake. We thought the index was dead. We were wrong. It was just incubating. superbad index