Commit co-authors are included in the commit activity summary if their commits were merged into the repository's default branch and they're in the top 15 users who have contributed the most commits.
- On GitHub, navigate to the main page of the repository.
- Under your repository name, click Insights.
By default, Pulse shows the last seven days of repository activity. To choose a different time period, click the Period dropdown in the upper-right corner of the Pulse overview.