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SlideShare: Building a Scalable Web Crawler with Hadoop

SlideShare: Building a Scalable Web Crawler with Hadoop

Common Crawl on building an open Web-Scale crawl using Hadoop.
Common Crawl Foundation
Common Crawl - Open Source Web Crawling data‍
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 Foundation
Common Crawl - Open Source Web Crawling data‍
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.
Common Crawl Foundation
Common Crawl - Open Source Web Crawling data‍
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.
Common Crawl Foundation
Common Crawl - Open Source Web Crawling data‍
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.
Common Crawl Foundation
Common Crawl - Open Source Web Crawling data‍
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.
Allison Domicone
Allison Domicone was formerly a Program and Policy Consultant to Common Crawl and previously worked for Creative Commons.
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 Foundation
Common Crawl - Open Source Web Crawling 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 Foundation
Common Crawl - Open Source Web Crawling data‍
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.
Common Crawl Foundation
Common Crawl - Open Source Web Crawling data‍

Common Crawl Blog

March 2018 Crawl Archive Now Available

March 29, 2018

The crawl archive for March 2018 is now available! The archive contains 3.2 billion web pages and 250+ TiB of uncompressed content, crawled between March 17th and 25th.

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February 2018 Crawl Archive Now Available

March 2, 2018

The crawl archive for February 2018 is now available! The archive contains 3.4 billion web pages and 270+ TiB of uncompressed content, crawled between February 17th and Feb 26th.

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Index to WARC Files and URLs in Columnar Format

March 1, 2018

We're happy to announce the release of an index to WARC files and URLs in a columnar format. The columnar format (we use Apache Parquet) allows to efficiently query or process the index and saves time and computing resources. Especially, if only few columns are accessed, recent big data tools will run impressively fast.

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Host- and Domain-Level Web Graphs Nov/Dec/Jan 2017-2018

February 8, 2018

We are pleased to announce a new release of host-level and domain-level web graphs based on the published crawls of November, December 2017 and January 2018. These graphs, along with ranked lists of hosts and domains, follow the prior web graph releases (Feb/Mar/Apr 2017, May/Jun/Jul 2017 and Aug/Sep/Oct 2017).

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January 2018 Crawl Archive Now Available

January 29, 2018

The crawl archive for January 2018 is now available! The archive contains 3.4 billion web pages and 270 TiB of uncompressed content, crawled between January 16th and Jan 24th.

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December 2017 Crawl Archive Now Available

December 22, 2017

The crawl archive for December 2017 is now available! The archive contains 2.9 billion web pages and over 240 TiB of uncompressed content.

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November 2017 Crawl Archive Now Available

November 29, 2017

The crawl archive for November 2017 is now available! The archive contains 3.2 billion web pages and 260 TiB of uncompressed content.

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Host- and Domain-Level Web Graphs Aug/Sept/Oct 2017

November 27, 2017

We are pleased to announce a new release of host-level and domain-level web graphs based on the published crawls of August, September, and October 2017. These graphs, along with ranked lists of hosts and domains, follow the first (February, March, April 2017) and second (May, June, July 2017) web graph releases.

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October 2017 Crawl Archive Now Available

October 29, 2017

The crawl archive for October 2017 is now available! The archive contains 3.65 billion web pages and over 300 TiB of uncompressed content.

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September 2017 Crawl Archive Now Available

September 29, 2017

The crawl archive for September 2017 is now available! The archive contains 3.01 billion web pages and over 250 TiB of uncompressed content.

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August 2017 Crawl Archive Now Available

August 28, 2017

The crawl archive for August 2017 is now available! The archive contains 3.28 billion+ web pages and over 280 TiB of uncompressed content.

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Now Available: Host- and Domain-Level Web Graphs

August 18, 2017

We are pleased to announce the release of host-level and domain-level web graphs based on the published crawls of May, June, and July 2017. These graphs, along with ranked lists of hosts and domains, follow on our first host-level web graph (February, March, April 2017).

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July 2017 Crawl Archive Now Available

July 31, 2017

The crawl archive for July 2017 is now available! The archive contains 2.89 billion+ web pages and over 240 TiB of uncompressed content.

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June 2017 Crawl Archive Now Available

July 4, 2017

The crawl archive for June 2017 is now available! The archive contains 3.16 billion+ web pages and over 260 TiB of uncompressed content.

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May 2017 Crawl Archive Now Available

June 5, 2017

The crawl archive for May 2017 is now available! The archive contains 2.96 billion+ web pages and over 250 TiB of uncompressed content.

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Common Crawl's First In-House Web Graph

May 22, 2017

We are pleased to announce the release of a host-level web graph of recent monthly crawls (February, March, April 2017). The graph consists of 385 million nodes and 2.5 billion edges.

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April 2017 Crawl Archive Now Available

May 9, 2017

The crawl archive for April 2017 is now available! The archive contains 2.94 billion+ web pages and over 250 TiB of uncompressed content.

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March 2017 Crawl Archive Now Available

April 4, 2017

The crawl archive for March 2017 is now available! The archive contains 3.07 billion+ web pages and over 250 TiB of uncompressed content.

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February 2017 Crawl Archive Now Available

March 10, 2017

The crawl archive for February 2017 is now available! The archive contains 3.08 billion+ web pages and over 250 TiB of uncompressed content.

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January 2017 Crawl Archive Now Available

February 1, 2017

The crawl archive for January 2017 is now available! The archive contains more than 3.14 billion web pages and about 250 TiB of uncompressed content.

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December 2016 Crawl Archive Now Available

December 16, 2016

The crawl archive for December 2016 is now available! The archive contains more than 2.85 billion web pages.

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October 2016 Crawl Archive Now Available

November 7, 2016

The crawl archive for October 2016 is now available! The archive contains more than 3.25 billion web pages.

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September 2016 Crawl Archive Now Available

October 7, 2016

The crawl archive for September 2016 is now available! The archive contains more than 1.72 billion web pages.

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News Dataset Available

October 4, 2016

We are pleased to announce the release of a new dataset containing news articles from news sites all over the world.

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August 2016 Crawl Archive Now Available

September 16, 2016

The crawl archive for August 2016 is now available! The archive contains more than 1.61 billion web pages.

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