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.

本数据集包含通过搭载星链（Starlink）终端的RIPE Atlas探测节点在全球五大洲采集的网页缓存延迟测量数据，采集周期超过24小时，累计生成约200万条测量结果。本测量旨在评估通过低轨（LEO）卫星网络访问热门网站时的用户感知延迟。

本数据集源自太空网页缓存研究项目Spache，如需获取更多细节与分析结果，请参阅其发表于WWW'25的学术论文。

数据集文件内容
本数据集包含以下文件：

元数据（Metadata）
- 目标网站列表：基于Alexa排名的前50大热门网站清单。
- RIPE Atlas测量ID：针对每个目标网站，分别提供Ping与Traceroute测量对应的RIPE Atlas测量标识符。
注意：microsoftonline.com（原Alexa排名第41位）因域名无法解析，未被纳入该列表。

测量结果 - 原始数据
- Ping与Traceroute结果：针对各目标网站的原始测量结果，包含每条测量的详细信息。
注意：关于测量结果格式的详细说明，请参阅RIPE Atlas官方文档。

测量结果 - 预处理延迟数据
- Ping RTT延迟：预处理后的数据集，包含针对所有目标网站的每次Ping测量的最小往返时间（Round Trip Time，简称RTT，单位：毫秒）。
- 探测节点信息：对应的探测节点ID，以及测量时各节点所属的国家与大洲。

本数据集旨在支撑网页缓存相关研究，尤其是卫星互联网场景下的相关研究。若您使用本数据集，请同时引用本数据集与关联的学术论文。