my traffic was 450 visitor from google search

my traffic was 450 visitor from google search last month , but now i have just

150 visitor , i dont know why that happen ?

my blog is :

http://aramnet.blogspot.com​

 

You need an analytics package, like Google Analytics ot Statcounter, that will tell you where your traffic comes from, and if it drops off, you'll know what keywords aren't sending traffic any more, and you'll be in a position to work out why

 

i use google analytics.

i didn't change my keywords

and i didn't change anything.

so , i don't know where my google search visitors go

 

If you don't know, nobody else will. USE your analytics, read them, think about them -
Do you always get visitors for the same keywords? Did your position in serps go down for those?
How long have you been getting 450 visitors? That was last month, what about the month before that?
Was last month an unusual spike? Is 150 more normal for you?

 

i was get 150 visitors before 4 months , increased to 250 before 3 months , 450 before 2 months ,150 before 1 month .

yes , last month was unusual .

 

Have you ever think to build your blog out of blog spot. I will always recommend use Wordpress.org or Joomla, nothing that has to be related to Blogger, Blogspot, or Wordpress.com. Otherwise they will own your blog not you.

 

i have 1oo visitors for 3 months ?? very down visit

 

It is very informative.
I'm doing exactly like this, and it is really the most effective way.