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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

September 2021 crawl archive now available

October 4, 2021

The crawl archive for September 2021 is now available! The data was crawled Sept 16 – 29 and contains 2.95 billion web pages or 310 TiB of uncompressed content. It includes page captures of 1.3 billion new URLs, not visited in any of our prior crawls.

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July/August 2021 crawl archive now available

August 9, 2021

The crawl archive for July/August 2021 is now available! The data was crawled July 23 – August 6 and contains 3.15 billion web pages or 360 TiB of uncompressed content. It includes page captures of 1 billion new URLs, not visited in any of our prior crawls.

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June 2021 crawl archive now available

June 28, 2021

The crawl archive for June 2021 is now available! The data was crawled June 12 – 25 and contains 2.45 billion web pages or 260 TiB of uncompressed content. It includes page captures of 1.3 billion new URLs, not visited in any of our prior crawls.

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Host- and Domain-Level Web Graphs February/March, April and May 2021

May 31, 2021

We are pleased to announce a new release of host-level and domain-level web graphs based on the crawls of February/March, April and May 2021. Additional information about the data formats, the processing pipeline, our objectives, and credits can be found in the announcements of prior webgraph releases.

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May 2021 crawl archive now available

May 23, 2021

The crawl archive for May 2021 is now available! The data was crawled May 5 – 19 and contains 2.6 billion web pages or 280 TiB of uncompressed content. It includes page captures of 1.28 billion new URLs, not visited in any of our prior crawls.

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April 2021 crawl archive now available

April 27, 2021

The crawl archive for April 2021 is now available! The data was crawled April 10 – 23 and contains 3.1 billion web pages or 320 TiB of uncompressed content. It includes page captures of 1.35 billion new URLs, not visited in any of our prior crawls.

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February/March 2021 crawl archive now available

March 14, 2021

The crawl archive for February/March 2021 is now available! The data was crawled between February 24th and March 9th and contains 2.7 billion web pages or 280 TiB of uncompressed content. It includes page captures of 1.2 billion new URLs, not visited in any of our prior crawls.

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Host- and Domain-Level Web Graphs October, November/December 2020 and January 2021

February 10, 2021

We are pleased to announce a new release of host-level and domain-level web graphs based on the crawls of October, November/December 2020 and January 2021. Additional information about the data formats, the processing pipeline, our objectives, and credits can be found in the announcements of prior webgraph releases.

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January 2021 crawl archive now available

February 2, 2021

The crawl archive for January 2021 is now available! The data was crawled between January 15th and 28th and contains 3.4 billion web pages or 350 TiB of uncompressed content. It includes page captures of 1.15 billion new URLs, not visited in any of our prior crawls.

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November/December 2020 crawl archive now available

December 10, 2020

The crawl archive for November/December 2020 is now available! The data was crawled between November 23 and December 6 and contains 2.64 billion web pages or 270 TiB of uncompressed content. It includes page captures of 1.4 billion new URLs, not visited in any of our prior crawls.

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October 2020 crawl archive now available

November 7, 2020

The crawl archive for October 2020 is now available! The data was crawled between October 19th and November 1st and contains 2.71 billion web pages or 280 TiB of uncompressed content. It includes page captures of 1.5 billion new URLs, not visited in any of our prior crawls.

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Interactive Webgraph Statistics Notebook Released

October 28, 2020

We are pleased to announce the release of an interactive Jupyter notebook that is used to provide visualization of webgraph statistics, and a way to interact with the webgraph.

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Host- and Domain-Level Web Graphs Jul/Aug/Sep 2020

October 16, 2020

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 2020. Additional information about the data formats, the processing pipeline, our objectives, and credits can be found in the announcements of prior webgraph releases.

Read More...

September 2020 crawl archive now available

October 7, 2020

The crawl archive for September 2020 is now available! The data was crawled between September 18th and October 2nd and contains 3.45 billion web pages or 345 TiB of uncompressed content. It includes page captures of 1.5 billion new URLs, not visited in any of our prior crawls.

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August 2020 crawl archive now available

August 19, 2020

The crawl archive for August 2020 is now available! It contains 2.45 billion web pages or 235 TiB of uncompressed content, crawled between August 2nd and 15th. It includes page captures of 940 million URLs unknown in any of our prior crawl archives.

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July 2020 crawl archive now available

July 20, 2020

The crawl archive for July 2020 is now available! It contains 3.14 billion web pages or 300 TiB of uncompressed content, crawled between July 2nd and 16th. It includes page captures of 1.1 billion URLs unknown in any of our prior crawl archives.

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Host- and Domain-Level Web Graphs Feb/Mar/May 2020

June 16, 2020

We are pleased to announce a new release of host-level and domain-level web graphs based on the crawls of February, March/April and May/June 2020. Additional information about the data formats, the processing pipeline, our objectives, and credits can be found in the announcements of prior webgraph releases.

Read More...

May/June 2020 crawl archive now available

June 10, 2020

The crawl archive for May/June 2020 is now available! It contains 2.75 billion web pages or 255 TiB of uncompressed content, crawled between May 24th and June 7th. It includes page captures of 1.2 billion URLs unknown in any of our prior crawl archives.

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March/April 2020 crawl archive now available

April 14, 2020

The crawl archive for March/April 2020 is now available! It contains 2.85 billion web pages or 280 TiB of uncompressed content, crawled between March 28th and April 10th. It includes page captures of 1 billion URLs unknown in any of our prior crawl archives.

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February 2020 crawl archive now available

March 4, 2020

The crawl archive for February 2020 is now available! It contains 2.6 billion web pages or 240 TiB of uncompressed content, crawled between February 16th and 29th. It includes page captures of 1 billion URLs unknown in any of our prior crawl archives.

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Host- and Domain-Level Web Graphs Nov/Dec/Jan 2019 – 2020

February 10, 2020

We are pleased to announce a new release of host-level and domain-level web graphs based on the crawls of November, December 2019 and January 2020. Additional information about the data formats, the processing pipeline, our objectives, and credits can be found in the announcements of prior webgraph releases.

Read More...

January 2020 crawl archive now available

February 3, 2020

The crawl archive for January 2020 is now available! It contains 3.1 billion web pages or 300 TiB of uncompressed content, crawled between January 17th and 29th. It includes page captures of 960 million URLs not contained in any crawl archive before.

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December 2019 crawl archive now available

December 19, 2019

The crawl archive for December 2019 is now available! It contains 2.45 billion web pages or 234 TiB of uncompressed content, crawled between December 5th and 16th. It includes page captures of 850 million URLs not contained in any crawl archive before.

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November 2019 crawl archive now available

November 27, 2019

The crawl archive for November 2019 is now available! It contains 2.55 billion web pages or 250 TiB of uncompressed content, crawled between November 11th and 23rd with a short operational break on Nov 16th. It includes page captures of 1.1 billion URLs not contained in any crawl archive before.

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Host- and Domain-Level Web Graphs Aug/Sep/Oct 2019

November 12, 2019

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 2019. Additional information about the data formats, the processing pipeline, our objectives, and credits can be found in the announcements of prior webgraph releases.

Read More...