Github has just published debug too to check the connectivity to your github, and debug when it is slow. The tool is available here https://github-debug.com/
You can read the full article here: https://githubengineering.com/github-debug/?imm_mid=0f6a21&cmp=em-prog-na-na-newsltr_20170923
Hope this helps. Happy debugging.
Introduction to Talend Open Studio for Data Integration.
Practical steps to developing your data integration strategy.
Create systems and workflow to manage clean data ingestion and data transformation.