Every blogger has there own point of view and understanding about a particular matter. For example Blogger A emphasis on Content and Blogger B will say that “No content is not the only life for your blog, but Promotion is the main thing which can increase your blog performance”. It depends on the experience of a blogger that what he has learned in his blogging career. However you can measure your blog performance by two ways.
First think about your blog effectiveness and think if you succeed in accomplishing what you tries to do . If yes then of course your blog is effectively performing and providing quality to the readers. Effectiveness means that whatever you are providing to your readers has quality or not. If it has quality then you are done. If not then start from the scratch and make an effective blog plan and correct all the mistakes. Following two articles will give you more idea about how to increase efficiency of your blog.
You can measure your blog performance and success by its efficiency. Efficiency means that what you have done with your blog that given you a brand name and unique identity in the blogging industry. Did you focused on content quality,promotional tactics, problem solving, or any other related techniques that helped you in achieving your goals. If yes then it means that your blog is high on both Effectiveness and Efficiency and that is why you can say that your blog is performing well.
When you started your blog at that time you set some goals for your blog. Normally every blogger goal is to make money. If you earned good money from your blog, then we can say that the blog is performing well and its performance is good.