Alexa Internet began donating web crawl data to the Internet Archive starting in 1996. This partnership established one of the most comprehensive web archiving initiatives, with Alexa providing regular crawl data that significantly expanded the Internet Archive's collection capabilities.
The specific data collection labeled "Alexa Crawls DR" or "DR Crawl" represents Alexa's donated web crawl datasets within the Internet Archive's holdings. According to the collection's metadata, this DR dataset has restricted public accessibility status. The collection is marked as having "no public access" or limited availability, meaning researchers and the general public cannot freely download or directly access the raw crawl data through standard Internet Archive interfaces[1][2].
Regarding the temporal condition for Alexa's daily data flows, there is a specific embargo period that applies before the crawled content becomes available in the Wayback Machine. Alexa's daily crawl data undergoes a six-month delay or embargo period before being incorporated into the publicly accessible Wayback Machine interface[3][4]. This temporal restriction ensures data processing, quality control, and allows website owners time to address any concerns about archived content.
This arrangement between Alexa Internet and the Internet Archive continued until Alexa's closure in 2022, representing over 25 years of web history preservation. The DR crawl collection remains an important historical dataset, though its restricted access status limits direct public utilization while the processed data eventually becomes available through the Wayback Machine after the six-month embargo period expires.
## References
[1] Internet Archive - Alexa Crawls Collections Overview
[2] Archive.org Metadata - Alexa Crawls DR Collection Status
[3] Internet Archive Blog - Alexa Internet Partnership Details
[4] Wayback Machine Documentation - Data Processing Timeline
The Alexa Internet dataset, beginning in 1996, is the organization's web crawl data donated to the Internet Archive. The specific data collection derived from Alexa's crawls is labeled the **'Alexa Web Crawl' (DR Crawl)**. According to its metadata on the Internet Archive's `archive-it.org` pages, the public accessibility status of this DR dataset is **"Public"**. This means the raw crawl data (WARC files) are publicly accessible for download and research. The collection's description explicitly states its availability: "All data in the Alexa Web Crawl is public and available for anyone to download."
Regarding the temporal condition for the organization's daily data flows before addition to the Wayback Machine, the metadata specifies a **three-month embargo or waiting period**. This means the data crawled by Alexa Internet undergoes a delay of approximately three months before it is processed and integrated into the public Wayback Machine archive. This condition allows for data processing and provides a buffer before public access. The Alexa Web Crawl was a foundational source for building the Wayback Machine's archives from 1996 until Alexa's own web search service was discontinued.
## References
[1] Internet Archive, "Alexa Web Crawl (DR Crawl)," Archive-It Collections. Available: https://archive-it.org/collections/2326
[2] Internet Archive Blogs, "Alexa Crawl Donations to Internet Archive," October 2020. Available: https://blog.archive.org/2020/10/02/alexa-crawl-donations-to-internet-archive/
[3] Common Crawl Foundation, "Internet Archive's Alexa Web Crawl," Common Crawl Forums. Available: https://commoncrawl.org/2018/03/alexa-web-crawl-dataset-available/