I have 2 queries regarding Alexa Ranking
1) My blog is around 50 days old its Alexa ranking is 4,940,585 is it good and if not how much should it be according to the age of the blog.
2) The Alexa ranking changes every 2-3 days and not frequently is it normal?
You are asking for an apples to oranges comparison. There are no bench marks re: traffic stats as there are multiple niches and comparing for example, food blog stats to fashion blog stats is senseless waste of time. We don’t provide support for Alexa issues here and they don’t provide support for WordPress.com issues. I suggest you consult the Alexa FAQs and/or contact Alexa with your concerns. http://www.alexa.com/faqs/?p=21