NDT (Network Diagnostic Tool) Dataset

Raw Datasets 2009 – present

About this dataset

The NDT dataset contains measurements of TCP throughput and latency collected by the Network Diagnostic Tool (NDT). NDT is a single-stream performance measurement of a connection's capacity for bulk transport. Measurements include download speed, upload speed, round-trip time (RTT), and packet loss between end-user devices and M-Lab servers worldwide.

Access the data

BigQuery

BigQuery (ndt7)

Parsed ndt7 summary table — recommended for most analyses

BigQuery

BigQuery (ndt5)

Parsed ndt5 summary table — historical data pre-2020

JSON / raw TCP trace

Google Cloud Storage (raw)

Raw measurement archives in compressed JSON and pcap format

gs://archive.measurementlab.net/ndt/
Interactive

Viz — Throughput Explorer

Interactive visualization of NDT download and upload speeds by geography and ISP

Dataset info

Geography
Global
Updated
Continuous
Approximate size
~2 TB/year (raw), ~500 GB/year (parsed)
Publisher
Measurement Lab
Source test
ndt

Documentation

Citing this dataset

M-Lab data is released without restriction under a Creative Commons Zero waiver. Please cite this dataset as:

The M-Lab NDT (Network Diagnostic Tool) Dataset, 2009-01-01–present. https://mlab.draftlab.dev/datasets/ndt/

Or in BibTeX format: 

@misc{ndt,
        author="{Measurement Lab}",
        title="{NDT (Network Diagnostic Tool) Dataset}",
        year="(2009-01-01 -- present)",
        howpublished="\url{https://mlab.draftlab.dev/datasets/ndt/}",
        comment="The NDT dataset contains measurements of TCP throughput and latency collected by the Network Diagnostic Tool (NDT). NDT is a single-stream performance measurement of a connection's capacity for bulk transport. Measurements include download speed, upload speed, round-trip time (RTT), and packet loss between end-user devices and M-Lab servers worldwide.",
        note="BigQuery (ndt7) {\tt https://console.cloud.google.com/bigquery?project=measurement-lab\&p=measurement-lab\&d=ndt\&t=ndt7\_summary\&page=table}",
        note1="BigQuery (ndt5) {\tt https://console.cloud.google.com/bigquery?project=measurement-lab\&p=measurement-lab\&d=ndt\&t=ndt5\_summary\&page=table}",
        note2="Google Cloud Storage (raw) {\tt gs://archive.measurementlab.net/ndt/}",
        note3="Viz — Throughput Explorer {\tt https://viz.measurementlab.net/}"
}