But why? Those things are easy to game, and speaking personally, I don't have an online software development presence like Github because I don't spend my off time working on anything I feel is worth sharing.
I gave two examples of secondary sources, but what I’m really getting at here is that the numbers and noise are so, so high now (not to mention staffing firm fronts and foreign actors) that I usually need more signal than a solid-looking resume before investing even 30’ in a screening call.