The worst was Verizon which delivered between 67-135 ms of service. That is quite a variation, and to figure out why you can drill down further and see the particular carriers that move traffic between these two cities: in Cogent's case, they go through a Los Angles-based node of AboveNet, while Verizon passes its traffic back through a GTT node in Virginia, which could be why their latencies are higher.
You could have probably gotten this information from doing a series of your own traceroutes, but II can show this information quickly, and in graphical form, and from just about any place around the world.
Speaking of which, II produces a number of graphical reports that can be easily interpreted by management. At a glance, you can see who are the best and worst connectivity providers from around the world. This is useful if you are unhappy with your current ISP and want to switch providers to improve your website response time, or if you are purchasing bandwidth from an ISP that has to go through numerous uplinks to get to the Internet with higher than average latencies from your location. Or if you are thinking about opening a new office and want to find the best collection of ISPs that can provide service.
II isn't the only one that collects this information: you can also get freely available Internet peering point performance from the European Network Internet Registry called RIPE here. And there are services such as WhatIsMyIP.com that offer this too. However, either site is very limited with just a few routers or the information is outdated. Dyn maintains a richer Internet infrastructure that is more flexible and capable, plus being more current.
II isn't without its faults. It is only collecting ping or traceroute traffic: it would be nice to also collect performance on higher-level protocols such as HTTP or FTP traffic too. Dyn representatives said the II platform is extensible and is looking into these and other improvements in the future.
Finally, II isn't cheap. A small to average size enterprise would pay $2,000 per month. Custom views, vantage points and targets increase the price per month as well as the number of IP networks that are alarmed. The product includes 10 seats.
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