Global Starlink Web Cache Latency & Traceroute Measurement Dataset

This dataset contains global web cache latency measurements collected via RIPE Atlas probes equipped with Starlink terminals across five continents, spanning over 24 hours and resulting in ~2 Million measurements. The measurements aim to evaluate the user-perceived latency of accessing popular websites through low-earth orbit (LEO) satellite networks. 

This dataset is a product of Spache, a research project on web caching from space. Please refer to its WWW'25 paper for more details and analysis results. 

Dataset File Content

The dataset includes the following files:

• Metadata

  • Target website list: A list of the top 50 most popular websites according to Alexa ranking.
    • RIPE Atlas Measurement IDs: For each website, the corresponding RIPE Atlas Measurement IDs for both Ping and Traceroute measurements are provided.
    • Note: microsoftonline.com (originally ranked 41st) is not included in the list due to its unresolvable domain name.

• Measurement results - Raw Data

  • Ping and Traceroute results: Raw measurement results for each target website, including detailed information on each measurement.
    • Note: For details on the measurement result formats, please refer to the RIPE Atlas documentation.

• Measurement results - Preprocessed Latency

  • Ping RTT latency: Preprocessed data containing the minimum RTT (Round Trip Time, in milliseconds) for each Ping measurement to all target websites.
    • Probe information: Corresponding Probe IDs, along with their respective countries and continents at the time of measurement.

This dataset is intended to support research on web caching, particularly in the context of satellite Internet. Please cite both this dataset and the associated paper if you find this data useful.