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?

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Do you want to research connection speed for Japan (JP)? TestMy.net's Download Speed Test and Upload Speed Test log connection information to allow users to research real world Internet speed test results. TestMy.net'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 Japan (JP).

Top ISP Rank in Japan

1So-net158.2 Mbps 191 Mbps 102 Mbps   506 clients took 502 tests recently
2GLBB Japan KK141.9 Mbps 215 Mbps 59 Mbps   74 clients took 685 tests recently
3NTT113 Mbps 148 Mbps 44 Mbps   735 clients took 501 tests recently
4au one net84.4 Mbps 102 Mbps 37 Mbps   3058 clients took 1850 tests recently
5SoftBank Corp.72.3 Mbps 99 Mbps 26 Mbps   968 clients took 777 tests recently
6Oracle Cloud60.7 Mbps 68 Mbps 17 Mbps   90 clients took 259 tests recently
7VECTANT58.7 Mbps 73 Mbps 35 Mbps   158 clients took 317 tests recently
8M247 Europe49.3 Mbps 59 Mbps 29 Mbps   193 clients took 349 tests recently
9Datacamp46.5 Mbps 53 Mbps 31 Mbps   328 clients took 1578 tests recently
10Amazon.com46.3 Mbps 52 Mbps 31 Mbps   154 clients took 269 tests recently
11xTom35.1 Mbps 36 Mbps 32 Mbps   103 clients took 306 tests recently
12Akamai32.4 Mbps 66 Mbps 6 Mbps   144 clients took 445 tests recently
13Rakuten Mobile26 Mbps 27 Mbps 24 Mbps   297 clients took 263 tests recently
14NTT Docomo13.4 Mbps 33 Mbps 6 Mbps   892 clients took 2714 tests recently
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Averages 102.9 Mbps / 36.3 Mbps | 129 ms

Speed Test Log  

Real Speed Test

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? TestMy.net is not a best case scenario connection test and will test your Internet under real world conditions. [read more] [hide text]