Erfan Azimi, CEO of SEO company EA Digital Eagle, was the first to spot Google’s documentation.
He later disclosed it to other SEO specialists.
The Content Warehouse API feels like a toolintendedfor internal use by Google personnel.

Google Search classifies web content using more than 14,000 different attributes.
However, there are no details about how much “weight” every attribute has in search indexing.
Google said subdomains are considered separately in rankings, but the Content Warehouse documentation doesn’t support that assertion.
It also uses some questionable measurements in its site rankings.
For example, one of Content Warehouse’s modules uses Chrome views as a website quality metric.
So far, Mountain View has provided no official statements about the potentially devastating leak.
However, rest assured that it has engineers working overtime trying to mitigate the consequences of the leak.