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March 14, 2021

February/March 2021 crawl archive now available

Note: this post has been marked as obsolete.
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.
Sebastian Nagel
Sebastian Nagel
Sebastian is a Distinguished Engineer with Common Crawl.

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.

Data Type File List #Files Total Size
Compressed (TiB)
Segments segment.paths.gz 100
WARC warc.paths.gz 64000 62.51
WAT wat.paths.gz 64000 18.44
WET wet.paths.gz 64000 8.06
Robots.txt files robotstxt.paths.gz 64000 0.20
Non-200 responses non200responses.paths.gz 64000 1.58
URL index files cc-index.paths.gz 302 0.21
Columnar URL index files cc-index-table.paths.gz 900 0.23

Improvements and Fixes

The ISO639-3 code for the Hmong language was updated to "hmn" - the code "blu" used so far was already deprecated in 2008. Crawl archives prior to this crawl will still use the code "blu". More details about this update are found here.

Archive Location and Download

The February/March crawl archive is located in the commoncrawl bucket at crawl-data/CC-MAIN-2021-10/.

To assist with exploring and using the dataset, we provide gzipped files which list all segments, WARC, WAT and WET files.

By simply adding either s3://commoncrawl/ or https://data.commoncrawl.org/ to each line, you end up with the S3 and HTTP paths respectively.

The Common Crawl URL Index for this crawl is available at: https://index.commoncrawl.org/CC-MAIN-2021-10/. Also the columnar index has been updated to contain this crawl.

Please donate to Common Crawl if you appreciate our free datasets! We’re also seeking corporate sponsors to partner with Common Crawl for our non-profit work in open data. Please contact info@commoncrawl.org for sponsorship information.

This release was authored by:
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Erratum: 

Erroneous title field in WAT records

Originally reported by: 
Robert Waksmunski
Permalink

The "Title" extracted in WAT records to the JSON path `Envelope > Payload-Metadata > HTTP-Response-Metadata > HTML-Metadata > Head > Title` is not the content included in the <title> element in the HTML header (<head> element) if the page contains further <title> elements in the page body. The content of the last <title> element is written to the WAT "Title". This bug was observed if the HTML page includes embedded SVG graphics.

The issue was reported by the user Robert Waksmunski:

...and was fixed for CC-MAIN-2024-42 by commoncrawl/ia-web-commons#37.

This erratum affects all crawls from CC-MAIN-2013-20 until CC-MAIN-2024-38.