Google apparently accidentally posted a big stash of internal technical documents to GitHub, partially detailing how the search engine ranks webpages. Google confirmed the authenticity of the documents to The Verge, saying, “We would caution against making inaccurate assumptions about Search based on out-of-context, outdated, or incomplete information. We’ve shared extensive information about how Search works and the types of factors that our systems weigh, while also working to protect the integrity of our results from manipulation.” The fun thing about accidentally publishing to the GoogleAPI GitHub is that, while these are sensitive internal documents, Google technically released them under an Apache 2.0 license.

Source: Google accidentally published internal Search documentation to GitHub