Measurement Lab was founded by the New America Foundation’s Open Technology Institute, the PlanetLab Consortium, Google Inc. and academic researchers. It provides access to five tools some of which have been mentioned earlier at Ghacks. The tools in question are:

• Network Diagnostic Tool – Test your connection speed and receive sophisticated diagnosis of problems limiting speed.
• Glasnost – Test whether BitTorrent is being blocked or throttled.
• Network Path and Application Diagnosis – Diagnose common problems that impact last-mile broadband networks.
• DiffProbe (coming soon) -Determine whether an ISP is giving some traffic a lower priority than other traffic.
• NANO (coming soon) -Determine whether an ISP is degrading the performance of a certain subset of users, applications, or destinations.

Only three of the tools are currently accessible on the M-Lab website. The Internet connection speed analysis can be directly initiated on the website without having to install third party software programs. The only requirement is the latest Java Runtime Environment to be able to run the diagnostics.

Each analysis provides results and the means to interpret those results. To achieve best results a server closest to you should be chosen. The speed analysis provides the means to identify problems with the connection or certain protocols.

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The web application is simulating a Bittorrent transfer between the user’s computer and the web server the application is running from to determine if the ISP is tampering with the Bittorrent traffic. The test can detect if the ISP is throttling all Bittorrent traffic, throttling all traffic at well known Bittorrent ports or throttling Bittorrent traffic at well known Bittorrent ports.

The user has the choice to perform a full test that takes roughly seven minutes or a fast test that lasts four minutes. The servers seem to be overrun currently by worldwide users and it might happen that you will receive a message that the servers are currently busy.

If you take a look at the results map you will notice a high concentration of ISPs that are throttling Bittorrent traffic in the United States and Singapore.

All blocked transfers were observed in the upstream direction (i.e., when the client host attempted to upload data to one of our Glasnost servers). No host observed blocking for downstream BitTorrent transfers.

We found widespread blocking of BitTorrent transfers only in the U.S. and Singapore. Interestingly, even within these countries, blocking was observed by hosts belonging to a handful of large ISPs.

The Danes and Brits seem to have tested the web application intensively because their countries are almost not visible anymore. What about your ISP, is it throttling Bittorrent traffic ?

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