Our Historic Index has just been updated and since our last update, we have crawled over 47 billion new unique URLs! See the latest figures below:
Majestic Historic Index
Unique URLs crawled: 1,873,305,791,381
Unique URLs found: 7,970,591,192,219
Date range: 21 Feb 2013 to 22 Sep 2018
Last updated: 28 Oct 2018
Just as a reminder, although you might use the Fresh Index for your day-to-day analysis because this data has the most up-to-date and current links, the Historical Index remains the broadest index. It contains historical data of over 5 years allowing you to explore your backlinks in more detail and see trends related to your links over time.