Glasnost: Test if your ISP is manipulating BitTorrent traffic Detailed test results: Is BitTorrent traffic on a well-known BitTorrent port (6884) throttled? Completed BitTorrent and TCP transfers using the BitTorrent port 6884:
Transfer Speed TCP Speed BitTorrent Conclusion Download #0 80 Kbps 73 Kbps No rate limiting Download #1 78 Kbps 54 Kbps No rate limiting Upload #0 357 Kbps 360 Kbps No rate limiting Upload #1 371 Kbps 359 Kbps No rate limiting
Is BitTorrent traffic on a non-standard BitTorrent port (10012) throttled? Completed BitTorrent and TCP transfers using the non-BitTorrent port 10012:
Transfer Speed TCP Speed BitTorrent Conclusion Download #0 67 Kbps 72 Kbps No rate limiting Download #1 61 Kbps 60 Kbps No rate limiting Upload #0 370 Kbps 365 Kbps No rate limiting Upload #1 370 Kbps 370 Kbps No rate limiting
Is TCP traffic on a well-known BitTorrent port (6884) throttled? Comparing TCP transfers using the well-know BitTorrent port 6884 and the non-BitTorrent port 10012:
TCP Transfer BitTorrent port Non-BitTorrent port Conclusion Download #0 80 Kbps 67 Kbps No rate limiting Download #1 78 Kbps 61 Kbps No rate limiting Upload #0 357 Kbps 370 Kbps No rate limiting Upload #1 371 Kbps 370 Kbps No rate limiting
Note that it is hard to detect rate limiting and that there are many explanations why a transfer can observe lower throughput than another transfer. We run the BitTorrent and TCP transfer back-to-back and at least two times to add more confidence to our measurements.
For details on our research on broadband networks please refer to our network transparency project webpage
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