Open Source Insights is an experimental service developed and hosted by Google to help developers better understand the structure, construction, and security of open source software packages. The service examines each package, constructs a full, detailed graph of its dependencies and their properties, and makes the results available to anyone who could benefit from them. The goal is to provide developers with a picture of how their software is put together, how that changes as dependencies change, and what the consequences might be.
It currently indexes GitHub, npm, and pkg.go.dev. Plus they recently added a dedicated security advisory page. For an example, check out left-pad’s page which shows 441 direct dependents and 15315 indirect dependents.