Is Your ISP Limiting or Shaping Your Traffic?

Traffic shaping or packet shaping is basically regulating network data transfer. This is normally done to assure a certain level of performance or quality of service (QoS). The practice involves delaying the flow of packets that have been designated as less important or less desired than those of prioritized traffic streams. Regulating the flow of packets into a network is known as “bandwidth throttling.” Regulation of the flow of packets out of a network is known as “rate limiting.”


The goal of the Glasnost project is to make ISPs’ traffic shaping policies transparent to their customers. To this end, Glasnost tests were designed to enable you to check whether traffic from your applications is being rate-limited (i.e., throttled) or blocked by your ISP.

Read More about this project HERE.

Test if your ISP is shaping your traffic by clicking HERE. If you run into technical issues, please visit the Glasnost site link above.

I’ve run this test against Charter and the process and results are below.


The Process

1. Start the test. When you start the test, you will be presented with the familiar question about running this Java application. If you want to run the test, click on Run to allow it to run. If you get a message stating there was an issue with your Java plug-in, visit the project site above and download their version of Java.


2. The test will begin and takes 500 seconds.


3. After the test finishes, you will be presented a Scan Results Summary.


4. You may view the details of the scan by clicking on the appropriate link. This is just some of the results of my Charter scan.



I hope you find this informative and interesting if nothing more.

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