Blog

The latest news, interviews, technologies, and resources.

Filter by Category or Search by Title

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
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

Host- and Domain-Level Web Graphs September/October, November/December 2022 and January/February 2023

March 15, 2023

We are pleased to announce a new release of host-level and domain-level web graphs based on the September/October, November/December 2022 and January/February 2023 crawls. For more information about the data formats and the processing pipeline, please see the announcements of previous webgraph releases.

Read More...

January/February 2023 crawl archive now available

February 16, 2023

The crawl archive for January/February 2023 is now available! The data was crawled January 26 – February 9 and contains 3.15 billion web pages or 400 TiB of uncompressed content. Page captures are from 40 million hosts or 33 million registered domains and include 1.3 billion new URLs, not visited in any of our prior crawls.

Read More...

November/December 2022 crawl archive now available

December 14, 2022

The crawl archive for November/December 2022 is now available! The data was crawled November 26 – December 10 and contains 3.35 billion web pages or 420 TiB of uncompressed content. Page captures are from 44 million hosts or 34 million registered domains and include 1.2 billion new URLs, not visited in any of our prior crawls.

Read More...

September/October 2022 crawl archive now available

October 11, 2022

The crawl archive for September/October 2022 is now available! The data was crawled September 24 – October 8 and contains 3.15 billion web pages or 380 TiB of uncompressed content. Page captures are from 44 million hosts or 34 million registered domains and include 1.3 billion new URLs, not visited in any of our prior crawls. This crawl includes improvements made in extracting clean text in WET files and WAT anchor texts.

Read More...

Host- and Domain-Level Web Graphs May, June/July and August 2022

September 23, 2022

We are pleased to announce a new release of host-level and domain-level web graphs based on the crawls of May, June/July and August 2022. 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...

August 2022 crawl archive now available

August 22, 2022

The crawl archive for August 2022 is now available! The data was crawled August 7 – 20 and contains 2.55 billion web pages or 295 TiB of uncompressed content. Page captures are from 46 million hosts or 37 million registered domains and include 1.3 billion new URLs, not visited in any of our prior crawls.

Read More...

June/July 2022 crawl archive now available

July 13, 2022

The crawl archive for June/July 2022 is now available! The data was crawled June 24 – July 7 and contains 3.1 billion web pages or 370 TiB of uncompressed content. Page captures are from 44 million hosts or 35 million registered domains and include 1.4 billion new URLs, not visited in any of our prior crawls.

Read More...

May 2022 crawl archive now available

June 2, 2022

The crawl archive for May 2022 is now available! The data was crawled May 16 – 29 and contains 3.45 billion web pages or 420 TiB of uncompressed content. Page captures are from 45 million hosts or 36 million registered domains and include 1.4 billion new URLs, not visited in any of our prior crawls.

Read More...

Host- and Domain-Level Web Graphs October, November/December 2021 and January 2022

March 16, 2022

We are pleased to announce a new release of host-level and domain-level web graphs based on the crawls of October, November/December 2021 and January 2022. 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...

Introducing CloudFront as a new way to access Common Crawl data as part of Amazon Web Services’ registry of open data

March 1, 2022

Ten years ago(!) Common Crawl joined AWS’s Open Data Sponsorships program, hosted on S3, with free access to everyone. Since then, the dataset has expanded (by petabytes!) and our community of users has seen extraordinary growth.

Read More...

January 2022 crawl archive now available

February 2, 2022

The crawl archive for January 2022 is now available! The data was crawled January 16 – 29 and contains 2.95 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.

Read More...

November/December 2021 crawl archive now available

December 14, 2021

The crawl archive for November/December 2021 is now available! The data was crawled Nov 26 – Dec 9 and contains 2.5 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.

Read More...

October 2021 crawl archive now available

November 1, 2021

The crawl archive for October 2021 is now available! The data was crawled Oct 15 – 28 and contains 3.3 billion web pages or 360 TiB of uncompressed content. It includes page captures of 1.3 billion new URLs, not visited in any of our prior crawls.

Read More...

Host- and Domain-Level Web Graphs June, July/August and September 2021

October 8, 2021

We are pleased to announce a new release of host-level and domain-level web graphs based on the crawls of June, July/August and September 2021. 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 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.

Read More...

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.

Read More...

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.

Read More...

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.

Read More...

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.

Read More...

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.

Read More...

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.

Read More...

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.

Read More...

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.

Read More...

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.

Read More...

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.

Read More...