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/20110809004850/http://www.searchengineoptimising.com:80/glossary/seo-glossary-of-terms/reciprocallink
Reciprocal links or link swap is the method by which a website will contain a link to another website, which in return will place a link back to the first site. This method doesn't always have a good effect on a websites PageRank.
SEO Resources 
