![]() ![]() ![]() This first-of-its-kind paired-test analysis reveals many previously unknown systemic issues, including high variability in NDT7 test results and systematically under- performing servers in the Ookla network. ![]() To characterize the behavior of these tools in wide-area deployment, we collect more than 80,000 pairs of Ookla and NDT7 measurements across nine months and 126 households, with a range of ISPs and speed tiers. Our results show that Ookla and NDT7 report similar speeds under most in-lab conditions, with the exception of networks that experience high latency, where Ookla consistently reports higher throughput. To study the effects of the test design, we conduct a series of controlled, in-lab experiments under a comprehensive set of network conditions and usage modes (e.g., TCP congestion control, native vs. Our goal is to characterize when and to what extent these two speed tests yield different results, as well as the factors that contribute to the differences. Claro Brasil wins multiple Speedtest awards - Ookla Bnamericas Published: Tuesday, AugMobile devices Mobile Network Operator 5g Mobile broadband Studies Show 2 More With your. In this paper, we present the first-ever comparative evaluation of Ookla and NDT7 (the latest version of NDT), both in controlled and wide-area settings. The Speedtest Global Index shows China topped the list with Shanghai as the fastest city on our list for mobile with a median download speed of 158.63 Mbps, while Beijing was fastest for fixed broadband during September 2022 at 238.86 Mbps. Two prevalent speed tests, Ookla’s Speedtest and Measurement Lab’s Network Diagnostic Test (NDT), are often used for similar purposes, despite having significant differences in both the test design and implementation, and in the infrastructure used to perform measurements. The Speedtest Global Index now ranks median internet download speeds in nearly 200 cities all over the world. Consumers, regulators, and ISPs all use client-based “speed tests” to measure network performance, both in single-user settings and in aggregate. Test your download, upload, ping, jitter and packet loss Troubleshoot or verify the speeds you were promised Track past tests with detailed reporting Easily. ![]()
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