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Still time to participate in the Common Crawl code contest

Still time to participate in the Common Crawl code contest

There is still plenty of time left to participate in the Common Crawl code contest! The contest is accepting entries until August 30th, why not spend some time this week playing around with the Common Crawl corpus and then submit your work to the contest?
Strata Conference + Hadoop World

Strata Conference + Hadoop World

This year's Strata Conference teams up with Hadoop World for what promises to be a powerhouse convening in NYC from October 23-25. Check out their full announcement below and secure your spot today.
Mat Kelcey Joins The Common Crawl Advisory Board

Mat Kelcey Joins The Common Crawl Advisory Board

We are excited to announce that Mat Kelcey has joined the Common Crawl Board of Advisors! Mat has been extremely helpful to Common Crawl over the last several months and we are very happy to have him as an official Advisor to the organization.
Common Crawl's Brand Spanking New Video and First Ever Code Contest!

Common Crawl's Brand Spanking New Video and First Ever Code Contest!

At Common Crawl we've been busy recently! After announcing the release of 2012 data and other enhancements, we are now excited to share with you this short video that explains why we here at Common Crawl are working hard to bring web crawl data to anyone who wants to use it.
2012 Crawl Data Now Available

2012 Crawl Data Now Available

I am very happy to announce that Common Crawl has released 2012 crawl data as well as a number of significant enhancements to our example library and help pages.
The Open Cloud Consortium’s Open Science Data Cloud

The Open Cloud Consortium’s Open Science Data Cloud

Common Crawl has started talking with the Open Cloud Consortium (OCC) about working together. If you haven’t already heard of the OCC, it is an awesome nonprofit organization managing and operating cloud computing infrastructure that supports scientific, environmental, medical and health care research.
OSCON 2012

OSCON 2012

We're just one month away from one of the biggest and most exciting events of the year, O'Reilly's Open Source Convention (OSCON). This year's conference will be held July 16th-20th in Portland, Oregon.
Learn Hadoop and get a paper published

Learn Hadoop and get a paper published

We're looking for students who want to try out the Apache Hadoop platform and get a technical report published.
Big Data Week: meetups in SF and around the world

Big Data Week: meetups in SF and around the world

Big Data Week aims to connect data enthusiasts, technologists, and professionals across the globe through a series of meet-ups. The idea is to build community among groups working on big data and to spur conversations about relevant topics ranging from technology to commercial use cases.
Twelve steps to running your Ruby code across five billion web pages

Twelve steps to running your Ruby code across five billion web pages

The following is a guest blog post by Pete Warden, a member of the Common Crawl Advisory Board. Pete is a British-born programmer living in San Francisco. After spending over a decade as a software engineer, including 5 years at Apple, he’s now focused on a career as a mad scientist.
Web Data Commons

Web Data Commons

For the last few months, we have been talking with Chris Bizer and Hannes Mühleisen at the Freie Universität Berlin about their work and we have been greatly looking forward the announcement of the Web Data Commons.
Common Crawl's Advisory Board

Common Crawl's Advisory Board

As part of our ongoing effort to grow Common Crawl into a truly useful and innovative tool, we recently formed an Advisory Board to guide us in our efforts. We have a stellar line-up of advisory board members who will lend their passion and expertise in numerous fields as we grow our vision.
Video Tutorial: MapReduce for the Masses

Video Tutorial: MapReduce for the Masses

Learn how you can harness the power of MapReduce data analysis against the Common Crawl dataset with nothing more than five minutes of your time, a bit of local configuration, and 25 cents.
Gil Elbaz and Nova Spivack on This Week in Startups

Gil Elbaz and Nova Spivack on This Week in Startups

Nova and Gil, in discussion with host Jason Calacanis, explore in depth what Common Crawl is all about and how it fits into the larger picture of online search and indexing. Underlying their conversation is an exploration of how Common Crawl's open crawl of the web is a powerful asset for educators, researchers, and entrepreneurs.
Video: This Week in Startups - Gil Elbaz and Nova Spivack

Video: This Week in Startups - Gil Elbaz and Nova Spivack

Nova and Gil, in discussion with host Jason Calacanis, explore in depth what Common Crawl is all about and how it fits into the larger picture of online search and indexing.
MapReduce for the Masses: Zero to Hadoop in Five Minutes with Common Crawl

MapReduce for the Masses: Zero to Hadoop in Five Minutes with Common Crawl

Common Crawl aims to change the big data game with our repository of over 40 terabytes of high-quality web crawl information into the Amazon cloud, the net total of 5 billion crawled pages.
Common Crawl Discussion List

Common Crawl Discussion List

We have started a Common Crawl discussion list to enable discussions and encourage collaboration between the community of coders, hackers, data scientists, developers and organizations interested in working with open web crawl data.
Answers to Recent Community Questions

Answers to Recent Community Questions

In this post we respond to the most common questions. Thanks for all the support and please keep the questions coming!
Common Crawl Enters A New Phase

Common Crawl Enters A New Phase

A little under four years ago, Gil Elbaz formed the Common Crawl Foundation. He was driven by a desire to ensure a truly open web. He knew that decreasing storage and bandwidth costs, along with the increasing ease of crunching big data, made building and maintaining an open repository of web crawl data feasible.
Video: Gil Elbaz at Web 2.0 Summit 2011

Video: Gil Elbaz at Web 2.0 Summit 2011

Hear Common Crawl founder discuss how data accessibility is crucial to increasing rates of innovation as well as give ideas on how to facilitate increased access to data.

Common Crawl Blog

Opening the Gates to Online Safety

February 17, 2025

Last week in Paris, at the AI Action Summit, a coalition of major technology companies and foundations announced the launch of ROOST: Robust Online Open Safety Tools.

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January/February 2025 Newsletter

February 3, 2025

We’re happy to share our January/February 2025 newsletter with updates and insights from the world of open data and web archiving.

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Host- and Domain-Level Web Graphs November/December 2024 and January 2025

February 1, 2025

We are pleased to announce a new release of host-level and domain-level web graphs based on the crawls of November, December 2024 and January 2025. The host-level graph consists of 277.7 million nodes and 2.7 billion edges, and the domain-level graph has 100.8 million nodes and 1.9 billion edges.

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January 2025 Crawl Archive Now Available

January 31, 2025

We're pleased to announce our first crawl of 2025, containing 3.0 billion pages, and 460 TiB uncompressed content.

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Introducing cc-downloader

January 21, 2025

Introducing a command-line tool written in Rust for downloading data from Common Crawl.

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Host- and Domain-Level Web Graphs October, November, and December 2024

December 21, 2024

We are pleased to announce a new release of host-level and domain-level Web Graphs based on the crawls of October, November, and December 2024. The crawls used to generate the graphs were CC-MAIN-2024-42, CC-MAIN-2024-46, and CC-MAIN-2024-51.

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December 2024 Crawl Archive Now Available

December 18, 2024

The crawl archive for December 2024 is now available. The data was crawled between December 1st and December 15th, and contains 2.64 billion web pages (or 394 TiB of uncompressed content). Page captures are from 47.5 million hosts or 38.3 million registered domains and include 1.05 billion new URLs, not visited in any of our prior crawls.

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Common Crawl Foundation at NeurIPS 2024: Expanding Horizons and Building Connections

December 17, 2024

The Common Crawl Foundation attended NeurIPS 2024, connecting with organisations, hosting a social event on tech and social impact, and showcasing contributions to AI research and data access.

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Expanding the Language and Cultural Coverage of Common Crawl

December 11, 2024

We aim to enhance linguistic diversity in our dataset by inviting community contributions of non-English URLs and collaborating with MLCommons on a Language Identification campaign.

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October/November 2024 Newsletter

November 25, 2024

We’re pleased to announce this month's newsletter, featuring key updates, upcoming events, and community highlights.

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Host- and Domain-Level Web Graphs September, October, November 2024

November 20, 2024

We are pleased to announce a new release of host-level and domain-level Web Graphs based on the crawls of September, October, and November 2024. The crawls used to generate the graphs were CC-MAIN-2024-46, CC-MAIN-2024-42, and CC-MAIN-2024-38.

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November 2024 Crawl Archive Now Available

November 18, 2024

The crawl archive for November 2024 is now available. The data was crawled between November 1st and November 15th, and contains 2.68 billion web pages (or 405 TiB of uncompressed content). Page captures are from 47.5 million hosts or 38.3 million registered domains and include 1 billion new URLs, not visited in any of our prior crawls.

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Reflections on Recent Talks at the Turing Institute and UCL

November 4, 2024

Thom Vaughan and Pedro Ortiz Suarez discussed the power of Common Crawl’s open web data in driving research and innovation during two notable presentations last week.

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Introducing the Common Crawl Errata Page for Data Transparency

October 30, 2024

As part of our commitment to accuracy and transparency, we are pleased to introduce a new Errata page on our website.

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Host- and Domain-Level Web Graphs August, September, and October 2024

October 22, 2024

We are pleased to announce a new release of host-level and domain-level Web Graphs based on the crawls of August, September, and October 2024. The crawls used to generate the graphs were CC-MAIN-2024-33, CC-MAIN-2024-38, and CC-MAIN-2024-42.

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October 2024 Crawl Archive Now Available

October 20, 2024

The data was crawled between October 3rd and October 16th, and contains 2.49 billion web pages (or 365 TiB of uncompressed content). Page captures are from 47.5 million hosts or 38.3 million registered domains and include 1.03 billion new URLs, not visited in any of our prior crawls.

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White House Briefing on Open Data’s Role in Technology

October 8, 2024

We recently had the honor of briefing the White House Office of Science and Technology Policy (OSTP) on the role of The Common Crawl Foundation as critical infrastructure in the artificial intelligence ecosystem and how we can support U.S. federal efforts in advancing responsible AI use and research.

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IAB Workshop on AI-CONTROL

September 30, 2024

Earlier this month, the Common Crawl Foundation had the privilege of participating in a groundbreaking workshop hosted by the Internet Architecture Board (IAB) in Washington DC.

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Host- and Domain-Level Web Graphs July, August, and September 2024

September 26, 2024

We are pleased to announce a new release of host-level and domain-level web graphs based on the crawls of July, August, and September 2024. The crawls used to generate the graphs were CC-MAIN-2024-30, CC-MAIN-2024-33, and CC-MAIN-2024-38.

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September 2024 Crawl Archive Now Available

September 24, 2024

The crawl archive for September 2024 is now available. The data was crawled between September 7th and September 21st 2024, and contains 2.8 billion web pages (or 410 TiB of uncompressed content).

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August/September 2024 Newsletter

September 10, 2024

We're pleased to announce our newsletter for August and September 2024.

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Host- and Domain-Level Web Graphs June, July, and August 2024

August 21, 2024

We are pleased to announce a new release of host-level and domain-level web graphs based on the crawls of June, July, August 2024. The crawls used to generate the graphs were CC-MAIN-2024-33, CC-MAIN-2024-30, and CC-MAIN-2024-26.

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August 2024 Crawl Archive Now Available

August 18, 2024

The crawl archive for August 2024 is now available. The data was crawled between August 3rd and August 16th, and contains 2.3 billion web pages (or 327.4 TiB of uncompressed content).

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The Increase of Common Crawl Citations in Academic Research

August 6, 2024

Common Crawl's impact on research has grown substantially since its beginning. Our crawls have become a vital resource for researchers in various fields, from natural language processing to red teaming.

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Host- and Domain-Level Web Graphs May, June, and July 2024

July 30, 2024

We are pleased to announce a new release of host-level and domain-level Web Graphs based on the crawls of May, June, and July 2024.

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