How fast is the Internet speed in Sumida JP?

We believe that it's a conflict of interest when Internet service providers operate their own speed tests. A third party opinion is necessary and the provider shouldn't be allowed anywhere near the process. When providers host their own speed tests they eliminate the variables that you're here to test. Namely the Internet route itself. This test is unbiased, it tests and grades all providers on the same criteria. They want you to think your connection is running perfectly... but is it really?

Sumida Speed Test

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Other speed tests, especially tests offered by your Internet provider try to eliminate routing factors. This can make your connection appear faster than it really is. If you visit many websites in the North America, Europe, Australia or Asia the results returned here will be a more realistic representation of your useable connection. Truthfully, do you want to know how fast your connection is within your providers network or do you want to know how fast it is to the locations where the websites you visit are being hosted? is not a best case scenario connection test and will test your Internet under real world conditions. [read more]

Top ISP Rank

1Rakuten Mobile46.5 Mbps 52 Mbps 24 Mbps   26 clients took 593 tests recently
2NTT PC35.7 Mbps 30 Mbps 53 Mbps   2 clients took 39 tests recently
3KDDI33 Mbps 20 Mbps 46 Mbps   2 clients took 2 tests recently
4NTT23.4 Mbps 10 Mbps 56 Mbps   23 clients took 17 tests recently
5ARTERIA12.6 Mbps 12 Mbps 16 Mbps   6 clients took 10 tests recently
6Softbank BB10 Mbps 1 Mbps 28 Mbps   45 clients took 6 tests recently
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Do you want to research connection speed of an Internet provider?'s Download Speed Test and Upload Speed Test log connection information to allow users to research real world Internet speed test results.'s speed test database stores information on millions of Internet connections. This tool can average connection speed for any Internet provider, country or city in the world. So you can easily average speed test results, compare maximum speeds, research logged results and find the fastest ISPs for JP.

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