Home Reports 2025 Global Japan

Internet Speed Report Japan January 2025

A comprehensive analysis of broadband performance in Japan based on real user speed tests conducted on Bandwidth Place.

Total Tests

88

Avg. Download

441.27Mbps

Avg. Upload

308.47Mbps

Avg. Ping

29.6ms

Top Internet Providers

Provider Avg Speed
NTT Communications Corporation 293.8 Mbps
Kddi Corporation 328.4 Mbps
Sony Network Communications Inc. 631.0 Mbps
So-net Entertainment Corporation 256.5 Mbps
Sony Network Communications Inc 235.3 Mbps
Sony Network Communications Inc. 296.7 Mbps
Jupiter Telecommunications Co., Ltd. 258.1 Mbps
Sony Network Communications Inc 560.0 Mbps
ASAHI Net, Inc. 468.6 Mbps
Sony Network Communications Inc. 781.4 Mbps

Top Devices

Device Share
iPhone 18.2%
Generic Android 2.0 10.2%
iPhone 10.2%
Apple iPhone 6.8%
iPhone 1.1%
iPad 1.1%
iPhone 1.1%
Generic Android 2.0 1.1%
iPhone 1.1%
Generic Smartphone 1.1%

Top Browsers

Browser Share
Chrome 30.7%
Mobile Safari 18.2%
Android Webkit 10.2%
Mobile Safari 10.2%
Safari 6.8%
Chrome 3.4%
Safari 2.3%
Mobile Safari 1.1%
Safari 1.1%
Chrome 1.1%

Analysis Methodology

The data presented in this report is aggregated directly from real user speed tests performed on the Bandwidth Place platform testing network nodes globally during 2025. We calculate the localized metrics using strict data sanity checks to prevent skewed results from anomalies or extreme outliers.

SEO & Location Routing Structure: Because location data is structurally rigid, caching data dynamically to static hierarchy (Country -> State -> City) provides significant improvements to PageSpeed metrics and Time to First Byte (TTFB). This strategy ensures optimum indexing for search engines processing localized queries.