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

1Internet243.9 Mbps 295 Mbps 169 Mbps   129 clients took 248 tests recently
2Biglobe175.2 Mbps 247 Mbps 55 Mbps   192 clients took 246 tests recently
3Asahi Net168.1 Mbps 182 Mbps 141 Mbps   200 clients took 416 tests recently
4So-net121.1 Mbps 144 Mbps 83 Mbps   407 clients took 1200 tests recently
5SoftBank Corp.102.9 Mbps 125 Mbps 56 Mbps   799 clients took 704 tests recently
6au one net98.9 Mbps 127 Mbps 50 Mbps   3494 clients took 4070 tests recently
7J:COM90.6 Mbps 114 Mbps 31 Mbps   207 clients took 265 tests recently
8NTT85.3 Mbps 105 Mbps 60 Mbps   626 clients took 1848 tests recently
9VECTANT76.8 Mbps 87 Mbps 49 Mbps   183 clients took 199 tests recently
10M247 Europe63.3 Mbps 71 Mbps 32 Mbps   170 clients took 253 tests recently
11Amazon.com61.4 Mbps 69 Mbps 38 Mbps   226 clients took 202 tests recently
12Oracle Cloud60.4 Mbps 64 Mbps 26 Mbps   84 clients took 273 tests recently
13ProtonVPN40.7 Mbps 44 Mbps 30 Mbps   76 clients took 301 tests recently
14Internet38.2 Mbps 48 Mbps 26 Mbps   219 clients took 2128 tests recently
15Datacamp36.6 Mbps 43 Mbps 22 Mbps   389 clients took 1102 tests recently
16NTT Docomo36.3 Mbps 38 Mbps 14 Mbps   2039 clients took 1896 tests recently
17Zscaler27 Mbps 29 Mbps 23 Mbps   103 clients took 243 tests recently
18Rakuten Mobile19.4 Mbps 23 Mbps 15 Mbps   333 clients took 319 tests recently
19Akamai16.3 Mbps 50 Mbps 8 Mbps   115 clients took 183 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]