Well Do u want to know what is Your Grade on twitter then You should Follow The Below Steps :.
It Also Helps us to Know about joining Date of your twitter account
Just Visit Twitter Grade Site here -- TwitterGrade --
Now Type your twitter username in the textbox and click on Grade.
After hitting grade button wait for few seconds to see the report
Tweet grader shows you the following data on the report :.
Your Twitter account Rank.
followers and the following count.
Updates,location,bio and also the joining date of your twitter account.
You Can Also check whether a follower is following you or not by simply entering their username