Google is deindexing some of pages what can be the possible reason?

As title says all...... please let me know if you guys have any idea....

 

Your site have duplicate content, so Google de index your pages.

 

google require the website more stringent

 

you have duplicate content and few backlinks to your pages.

 

ya the most possible reason is you have duplicate content

 

thanks guys for your say...... i've lost some of the SERP ranking too and backlinks as well.... any idea about this?

 

backlinks probs weren't permanent and so were removed,
did you pay for the backlinks?

 

same thing happening with me. I lost many backlinks 2months ago. That was the reason i think.

 

We went down from 3000 pages to 1300 which I believe was becasue of 1200 errors (even though some were googles fault) we are now down to just two errors (which arent actually errors) and are indexing is going back up and currently at 1800

 

@Thomsopw

But still it went too down.... and I didn't pay for any link... all were naturally built

 

I think duplicate content is reason.

 

There may be various reasons..
Duplicate Content, Illegal Content, Low Quality Original Content etc,..

 

hey dont worry if your content in not duplicated then wait for some time your pagw will be back,