Internet Cartography
Jul 19, 2010

Summary
This post introduces the concept of 'Internet Cartography' by correlating historical telegraph network maps with modern internet topology. It details a method using the open-source Boomerang framework to measure DNS and HTTP latencies from user traffic. The post presents analysis of median and density plots for DNS latencies, and median HTTP latencies, comparing real-world performance against theoretical minimums based on geographical distance. It highlights how factors like ocean width, economic ties, and local geography influence network performance, using examples from Europe, Asia, and South America. The post encourages readers to implement similar measurements from their own websites.