Common Crawl maintains a free, open repository of web crawl data that can be used by anyone.

Common Crawl has added IBM’s GneissWeb quality and category annotations to its web dataset, enabling users to filter high-quality content and explore topics like medical, education, and technology.

Common Crawl Foundation

Common Crawl builds and maintains an open repository of web crawl data that can be accessed and analyzed by anyone.

Common Crawl maintains a free, open repository of web crawl data that can be used by anyone.

Common Crawl is a 501(c)(3) non–profit founded in 2007.‍We make wholesale extraction, transformation and analysis of open web data accessible to researchers.

Over 300 billion pages spanning 15 years.

Free and open corpus since 2007.

Cited in over 10,000 research papers.

3–5 billion new pages added each month.

Featured Papers:

Lukas Kriesch, Sebastian Losacker

A geolocated dataset of German news articles

Mostafa Ansar, Anna Sperotto, Ralph Holz

Web Crawl Refusals: Insights From Common Crawl

Jeffrey Knockel, Jakub Dalek, Noura Aljizawi, Mohamed Ahmed, Levi Meletti, and Justin Lau

Banned Books: Analysis of Censorship on Amazon.com

Xian Gong, Paul X. McCarthy, Marian-Andrei Rizoiu, Paolo Boldi

Harmony in the Australian Domain Space

Kevin Saric, Felix Savins, Gowri Sankar Ramachandran, Raja Jurdak, Surya Nepal

Hyperlink Hijacking: Exploiting Erroneous URL Links to Phantom Domains

Zhihong Shao, Peiyi Wang, Qihao Zhu, Runxin Xu, Junxiao Song, Mingchuan Zhang, Y.K. Li, Y. Wu, Daya Guo

DeepSeekMath: Pushing the Limits of Mathematical Reasoning in Open Language Models

Asier Gutiérrez-Fandiño, David Pérez-Fernández, Jordi Armengol-Estapé, David Griol, Zoraida Callejas

esCorpius: A Massive Spanish Crawling Corpus

Marius Løvold Jørgensen, UiT Norges Arktiske Universitet

BacklinkDB: A Purpose-Built Backlink Database Management System

Latest Blog Post:

Announcing GneissWeb Annotations

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Common Crawl is a 501(c)(3) non–profit founded in 2007.
‍
We make wholesale extraction, transformation and analysis of open web data accessible to researchers.