All ranks disappeared but google webmaster shows not!

I have a website, it is 2 years old. All of the main keywords are ranking around 10 position. It is not a good SEO website.

In the last 1.5 month, i added about 800 blog comments. But it seems no help for the ranks.

At the same time, i added a subsite at the domain with 5,000 products. Good has been indexing the new pages slowly.

But yesterday, all of my main keywords lost its ranks and get out of 10 pages. I have a analysis of the google webmaster, it said all of the ranks doesn't changed. The updated date is 28 Set.

But when i had a checked again now, it shows all of the ranks doesn't change. And the updated date is 29 Set. But i have a check of google, i still lost the ranks. Why?

And why my ranks disappeared?

edit: just read 2 years old site, so sandboxing is kind of a rare possibility, I guess it is just a minor glitch and did you see a drop in the indexed pages on Google ?

hmmm 800 links in 6 weeks shouldnt get a 2 year old site sandboxed, unless it had close to 0 backlinks initially?

Have also never heard of a page getting sandboxed for adding alot of sub pages in a hurry.

The domain is 2004, and i used it from 2007.

The site is www*ceruleangallery*com

Thanks for your help!

digitalcrew said:

edit: just read 2 years old site, so sandboxing is kind of a rare possibility, I guess it is just a minor glitch and did you see a drop in the indexed pages on Google ?

Click to expand...

What's more strange, the google webmaster tool tell me that the crawled page in the last 2 days are about 2,000 pages! It was increased 4 times!

So strange!

don't worry, you are not banned from Google