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+Greg Miernicki (author)

+François Beaufort (algorithm)

How did we obtain this data? Update!

Show Google+ accounts

Show Google- accounts

2,550,775,821 Google+ accounts

0,032,190,934 Google- accounts

0,032,190,934 Google- accounts

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Before November 15, 2012, we use the numbers Google provided publicly. After that date, we began calculating the number on our own. To achieve a tally, we first download the Google+ Sitemap :

This file itself does not contain any profile data, but it does have links to the 50,000 sub-sitemap files that do. For each of these sub-sitemap files, we download, parse, and count the number of Google+ and Google- profiles links. Tallying the data from all 50,000 files together gives us two numbers: the number of Google+ accounts and the number of Google- accounts. A Google- account is a Google+ account where the G+ feature has been disabled.

At certain times however, the Google+ sitemap has been known to be unavailable or

G+ recently surpassed 2^31 total users (the 32-bit unsigned integer limit), so we switched to using doubles in the graph to extend beyond this limitation.

+Greg