Test: Does Your ISP Slow Down BitTorrent Traffic?

Written by Ernesto on May 07, 2008 

Hundreds of larger and smaller ISPs all over the world try to limit BitTorrent traffic on their networks. Unfortunately, most companies are not very open about their network management solutions, with Comcast as the prime example. Thanks to the Glasnost project, you can now test wheter your ISP is one of the bad guys.

bittorrent throttlingA while back we posted about the plugin Azureus had developed, which allowed people to check whether their ISP is interfering with their traffic. The results showed that indeed quite a few ISPs were, but the plugin didn’t provide the user with direct feedback.

The new tool developed by the “max planck institute for software systems” can be used without having to run your BitTorrent client, and compares BitTorrent traffic to regular traffic. On top of that, it will give you more information than the Azureus plugin does.

“The goal of our Glasnost project is to make access networks, such as residential cable, DSL, and cellular broadband networks, more transparent to their customers,” the Glasnost team writes. We couldn’t agree more of course, as we have said many times before.

The way it works is pretty straightforward. The Java applet developed by the Glasnost project uploads and downloads data via BitTorrent for a few seconds, and compares that to your regular download speed. It detects if your ISP is limiting all BitTorrent traffic, or just traffic on well known BitTorrent ports. All in all this tool should be able to tell you whether your ISP is messing with BitTorrent traffic or not.

Please keep in mind that the degree of traffic shaping varies a lot between different ISPs. Some ISPs only limit BitTorrent traffic during certain times of the day or do not throttle until the customer has exceeded a certain data threshold, others only slow down traffic in specific regions. More advanced tools have to be developed to detect these methods.

Thus far, over 5,300 users have performed the test, and the preliminary results show that at least 10 ISPs in the United States are slowing down BitTorrent. We asked the researcher for some more details (names) but we haven’t heard back from them. However, on their website, they promise to provide more detailed results later, once the code is peer-reviewed.

We encourage you to do the test, if the test results show that your ISP is limiting BitTorrent traffic, please let us know. We will add a lits of offenders at the bottom of this article.

The test servers seem to have limited capacity. If it shows up as “busy”, please bookmark this article and try again later.

1. Comcast, USA

Previously: New York Piracy Law Smells Fishy Says Pirates

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97 Responses (Add yours or TrackBack)

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1 May 07, 2008 at 11:43 by Lars

first. and
We are sorry. Our measurement servers are currently busy. Please try again later.
If you are interested in hosting a test server, please contact us at or click here.

2 May 07, 2008 at 11:43 by Lars

edit worked just had to refresh it

3 May 07, 2008 at 12:04 by Ernesto

[quote comment="378534"]edit worked just had to refresh it[/quote]

They have limited capacity, so you might have to try a few times indeed.

4 May 07, 2008 at 12:22 by andyness

Worked first time… :D

5 May 07, 2008 at 12:28 by Jimmy

­

6 May 07, 2008 at 12:28 by Rocky

I don’t my ISP does anything. But back here in India the speeds are very slow anyway. Currently the max plan they have is for 2 mbps unlimited. 8Mbps costs a lot and have to pay for additional bandwidth.

Rocky
Webmaster @ http://www.pokermoviefanatic.com

7 May 07, 2008 at 12:40 by 970am

If not for net neutrality, ISPs would simply be able to block this page entirely so you couldn’t see it to test if your’e being blocked in the first place.

YAY FREEDOM AND CAPITALISM!

8 May 07, 2008 at 12:42 by Anon

Wasn’t this on TF before?

9 May 07, 2008 at 12:48 by Jimmy

[quote comment="378565"]­[/quote]

10 May 07, 2008 at 13:02 by kidTHATthinks

[quote comment="378574"]Wasn’t this on TF before?[/quote]

its a dejavu. run, run for your life.

thank you for your work torrentfreaks, great articles every time. keep with the good work. and for rest of you, folks: Sharing = Caring

11 May 07, 2008 at 13:15 by lol

slashdot effect

12 May 07, 2008 at 13:28 by Proper Noun

“max planck institute for software systems?”

13 May 07, 2008 at 13:41 by thoouth

otherwise known as M PISS lol, bloody academics and their acronyms!

14 May 07, 2008 at 13:42 by MaE

Thanks, nice article. As for the results of the test - I guess I have a good ISP cause download and upload speeds are better when using torrent than normal TCP transfer. :

15 May 07, 2008 at 14:12 by someone there

Lucky you.

16 May 07, 2008 at 14:41 by Eircom ISP

you must go to the page and keep hitting the ‘refresh’ button.
again and again and again.
or get a bot to do it.

17 May 07, 2008 at 15:00 by anon

[quote comment="378602"]Thanks, nice article. As for the results of the test - I guess I have a good ISP cause download and upload speeds are better when using torrent than normal TCP transfer. :[/quote]

Hey me too!

I actually got in on the first try too.

18 May 07, 2008 at 15:13 by Gav

I’d be surprised if my ISP (Virgin Media) was limiting torrents. They’re very open about the traffic management they enforce (by imposing download limits in peak times).

I get 2.2MB/Sec average when torrenting (From a private tracker), which isn’t bad at all. (20Mbit Connection)

19 May 07, 2008 at 15:23 by serrebi

my ISP , telus , aparrently does not throttle bit torrent[in british columbia, Canada]. THat’s awsome. Glad I made a nice decision.

20 May 07, 2008 at 15:24 by New World Order

FIRST! ZOMG! IM FIRST!!!

21 May 07, 2008 at 15:33 by YEAH

lol

22 May 07, 2008 at 15:46 by Whats New

This doesn’t Test TCP RST packets so its useless…..

23 May 07, 2008 at 16:08 by ColdFission

I just did the test and my ISP DOES NOT do any throttling of any kind according to the quick test.

DCCNET is the my ISP right now. Been with them for 4 years and they have been great.

And thanks TF for brining up this cool tool

24 May 07, 2008 at 16:27 by Lars

[quote comment="378698"]This doesn’t Test TCP RST packets so its useless…..[/quote]
yeh on the first test test on tf my isp was listed as a throttler, 20% or something. but this test says it doesnt throttle.

25 May 07, 2008 at 17:26 by Almo

Gush
We are sorry. Our measurement servers are currently busy. Please try again later.

From Russia there were only 2 checks so far :(

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