My previous post presented “A Graphical View of API Performance Based on Call Location.” In that post, we analyzed the performance of a week of calls to the World Bank Countries API (which is served from Washington DC) from four different locations around the globe: Washington DC USA, Oregon USA, Ireland, and Tokyo Japan. The API performance across the week showed remarkable consistency. Calls to the API from Washington DC had by far the best performance; calls from Ireland generally outperformed calls from Oregon, which generally outperformed calls from Tokyo. Here’s the data for the week (the Y axis is logarithmic)