What does mean by B- grade on Socialblade

I am sure you also have a youtube channel as I have www.youtube.com/Latestfotocom

Because Socialblade is for those who are interested to analyse the performance of owned youtube channel. 

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Nevertheless, few youtubers visit socialblade to find the performance of a competente youtube channel and few for making a new video showing the web traffic data and rank of any famous youtuber. They add famous youtuber's name in video title and photo in video thumbnail so that visitors can feel that the video is made by famous youtuber and click the video thumbnail to start to watch the video. 

But, soon, the visitor will realize it is visitor trapping only and famous youtuber does not make the video. 

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Moreover, you can also apply to find some views and visitors. But you loose trust of visitors. 

Real visitor will come repeatdly to watch your videos and subscribe your channel also. 

Too much talk we did. But we have to find what does B- means on socialblade. 

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I do sometimes visit of Socialblade for looking my day earning. I know very well that it does not tell me exactly but gives idea that I will earn more or less than yesterday earning. We can predict it easily by viewing the Socialblade data for a youtube channel. 

After a long time today I visited Socialblade. I surprized that the grade of my channel is now set on B-. Earlier, from last many years, it was C-. 

The grade B- on Socialblade means my channel has done enough improvements during this period. 

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There are four grades A, B, C and D which I found during performing search on Socialblade. All these grade are further categorized in + and - grades. A+ grade is better than A- grade. B- grade is better that C+ grade. 

This is a same type of grading system which few of schools have adapted for providing the marks in the examinations to students. 

Tell me what does mean by D- grade by writting in the comment section. 

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You also tell what grade you have received for your channel. 

Overall, donot take it seriously. Enjoy with the A, B, C and D grades on Socialblade as you enjoy with your channel on youtube. 

Hope, now your doubt is clear. 

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Good Luck with your grade !!!!