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.
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.
TIMESTAMPS
The Wayback Machine - https://web.archive.org/web/20110809004615/http://www.searchengineoptimising.com:80/glossary/seo-glossary-of-terms/googlesupplementalindex
This is an index where websites and pages that have low trust are kept. To be placed in the supplemental index a site usually has low trust, duplicate content or very complicated URLs.
SEO Resources 
