The crawl archive for January 2019 is now available! It contains 2.85 billion web pages or 240 TiB of uncompressed content, crawled between January 15th and 24th.
The January crawl contains page captures of 850 million URLs not contained in any crawl archive before. New URLs are sampled based on the host and domain ranks (harmonic centrality) published as part of the Aug/Sep/Oct 2018 webgraph data set from the following sources:
- sitemaps, RSS and Atom feeds
- a breadth-first side crawl within a maximum of 6 links (“hops”) away from the homepages of the top 50 million hosts and domains
- a random sample of outlinks taken from WAT files of the December crawl
The number of sampled URLs per domain depends on the domain’s harmonic centrality rank in the webgraph data set – higher ranking domain are allowed to “contribute” more URLs.
Archive Location and Download
The January crawl archive is located in the commoncrawl bucket at crawl-data/CC-MAIN-2019-04/.
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://commoncrawl.s3.amazonaws.com/ to each line, you end up with the S3 and HTTP paths respectively.
File List #Files Total Size
Segments CC-MAIN-2019-04/segment.paths.gz 100 WARC files CC-MAIN-2019-04/warc.paths.gz 64000 58.86
WAT files CC-MAIN-2019-04/wat.paths.gz 64000 18.88
WET files CC-MAIN-2019-04/wet.paths.gz 64000 7.98
Robots.txt files CC-MAIN-2019-04/robotstxt.paths.gz 64000 0.18
Non-200 responses files CC-MAIN-2019-04/non200responses.paths.gz 64000 1.65
URL index files CC-MAIN-2019-04/cc-index.paths.gz 302 0.21
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