Global Ping Times
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This repl estimates ping times across the globe for various server configurations.

Visit the index.html to adjust settings and create a map of ping times. Set the location(s) of servers, change the color of the heatmap, or change the weights of each location. Then it will compute the average ping times, deciles of the results, and a map.

You can edit the index.html and/or script.js file if you wish to make more adjustments.

The map is generated from Open Layers and the data comes from WonderNetwork.

Read this sort-of related blog post about computing the population near cities. Visit to play a fun train game that inspired this repl and/or express your support for this project and signup for updates. Check out more of my projects at