In addition to the above traffic details, the Alexa rank checker tool will also provide the below two graphs:
1. Traffic Rank Graph
Generally the traffic rank graph is shown for those sites ranking within 1 million. If your site is not ranked within 1 million then you may not be seeing the graph details. The traffic data will be shown in the graph for the perdio of last one year.
2. Search Engine Traffic Graph
The second graph is a search engine graph which will show you the percentage of traffic received from search engines like Google, Bing, Yahoo!, etc. This is a good indicator for the website owners to understand whether they receive sufficient organic traffic from search engines. The higher percentage indicates that the site is ranked well in Google and the lower percentage indicates that the ranking is poor.