Starting in 1996, Alexa Internet has been donating their crawl data to the Internet Archive. Flowing in every day, these data are added to the Wayback Machine after an embargo period.
Crawl EF from Alexa Internet. This data is currently not publicly accessible.
TIMESTAMPS
current
edition
You can download the book in four parts, in your choice of pdf or ps format, from the left column below.
You can also download the lecture slides, in pdf format, from the right column below.