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

1J:COM160.9 Mbps 251 Mbps 24 Mbps   200 clients took 197 tests recently
2Asahi Net117.6 Mbps 132 Mbps 91 Mbps   189 clients took 182 tests recently
3So-net108.8 Mbps 118 Mbps 88 Mbps   519 clients took 351 tests recently
4NTT104.9 Mbps 133 Mbps 53 Mbps   777 clients took 774 tests recently
5Internet94 Mbps 130 Mbps 52 Mbps   183 clients took 193 tests recently
6M247 Europe63.3 Mbps 75 Mbps 37 Mbps   73 clients took 244 tests recently
7NTT Docomo63.2 Mbps 118 Mbps 9 Mbps   203 clients took 343 tests recently
8xTom55.3 Mbps 66 Mbps 29 Mbps   93 clients took 396 tests recently
9Datacamp52.4 Mbps 63 Mbps 21 Mbps   223 clients took 253 tests recently
10SoftBank Corp.51.7 Mbps 59 Mbps 32 Mbps   365 clients took 1221 tests recently
11Datacamp51.3 Mbps 66 Mbps 26 Mbps   141 clients took 858 tests recently
12au one net51.3 Mbps 114 Mbps 11 Mbps   1992 clients took 4177 tests recently
13Softbank BB50.5 Mbps 73 Mbps 15 Mbps   676 clients took 179 tests recently
14iCloud Private41.5 Mbps 42 Mbps 26 Mbps   142 clients took 782 tests recently
15Internet41.4 Mbps 43 Mbps 39 Mbps   178 clients took 282 tests recently
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Averages 100.2 Mbps / 39.5 Mbps | 128 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]