What is Traffic Rank?
The traffic rank is based on three months of aggregated historical
traffic data from millions of Alexa Toolbar users. It is a
combined measure of page views and users (reach). The three-month
change is determined by comparing the site's current rank
with its rank from three months ago.
What is Reach?
Reach measures the number of users. Reach is typically expressed
as the percentage of all Internet users who visit a given
site. Alexa expresses reach as the number of users per million.
The three-month changes are determined by comparing a site's
current reach with its values from three month ago.
