We are pleased to announce a new release of host-level and domain-level web graphs based on the published crawls of November, December 2018 and January 2019. Additional information about the data formats, the processing pipeline, our objectives, and credits can be found in the announcements of prior webgraph releases (e.g., Nov/Dec/Jan 2017-2018 Webgraphs). You may also visit the projects cc-webgraph and cc-pyspark which host all scripts and tools required to construct the graphs.
The graph consists of 407 million nodes and 4.2 billion edges and includes dangling nodes i.e. hosts that have not been crawled yet are pointed to from a link on a crawled page. There are 323 million dangling nodes (79%) and the largest strongly connected component contains 63 million (15%) nodes. You can download the graph and the ranks of all 407 million hosts from AWS S3 on the path s3://commoncrawl/projects/hyperlinkgraph/cc-main-2018-19-nov-dec-jan/host/. Alternatively, you can use https://data.commoncrawl.org/projects/hyperlinkgraph/cc-main-2018-19-nov-dec-jan/host/ as prefix to access the files from everywhere.
Download files of the Common Crawl Nov/Dec/Jan 2018-19 host-level Webgraph
Note that the host names are reversed and a leading www. is stripped: www.subdomain.example.com becomes com.example.subdomain.
The domain-level graph has 90 million nodes and 1.69 billion edges. 53% or 48 million nodes are dangling nodes, the largest strongly connected component covers 37 million or 41% of the nodes. All files related to the domain graph are available on AWS S3 under s3://commoncrawl/projects/hyperlinkgraph/cc-main-2018-19-nov-dec-jan/domain/ resp. https://data.commoncrawl.org/projects/hyperlinkgraph/cc-main-2018-19-nov-dec-jan/domain/.
Download files of the Common Crawl Nov/Dec/Jan 2018-19 domain-level Webgraph
Thanks to the authors of the WebGraph framework, whose software made the computation of graph properties and ranks possible. We hope the data will be useful for you to do any kind of research on ranking, graph analysis, link spam detection, etc. Let us know about your results via Common Crawl's Google Group!