July 2024 Crawl Archive Now Available

The crawl archive for July 2024 is now available.

Changes

Two new WARC headers were introduced to hold information related to the HTTP protocol.

- WARC-Protocol shows the HTTP protocol version used to retrieve a web page.

For HTTPS URLs a repeated header contains the SSL/TLS version.

- WARC-Cipher-Suite contains the SSL/TLS cipher suite used while fetching the content. It is absent for fetches over HTTP.

About half of the segments of this crawl were fetched with crawler support for HTTP/2 enabled.

If the requested web server also supports HTTP/2, the content is retrieved over HTTP/2 or, precisely, h2. The HTTP headers in WARC captures over HTTP/2 are written in a backward-compatible manner:

- As text, not as binary data, using the same format as for HTTP/1.1 or HTTP/1.0

- The HTTP version in the request and status lines is written as HTTP/1.1.

This is requirement for many WARC readers which would fail on unknown HTTP version strings.

For the true HTTP protocol version, please refer to the WARC-Protocol header.

More information about this crawler upgrade and additional pointers are found in the corresponding issue report commoncrawl/nutch#29.

Please note that we plan to fetch via HTTP/2 in future crawls as well.

Details

The data was crawled between July 12th and July 25th, and contains 2.5 billion web pages (or 360 TiB of uncompressed content). Page captures are from 50 million hosts or 40 million registered domains and include 949 million new URLs, not visited in any of our prior crawls.

Archive Location & Download

The July 2024 crawl archive is located in the commoncrawl bucket at crawl-data/CC-MAIN-2024-30/.

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, please see Get Started for detailed instructions.