Hello DPears, I have website www.jjshoponline.net, Earlier it was having more than 2 k pages indexed in Google, but since lasst week i am seeing significant amount of pages are getting deindexed from google.. Now there are about to 1200 pages are indexed, i lost 800 pages Why? I just changed titles and meta decription and meta keywords, did my my pages are getting de indexed because i have change titles and meta details ?
They will get back in the index after a week or two. Don't worry. In the meanwhile you can continue to build quality links. It will help to speed up the things.
1200 pages of your site? Make sure to linking network that link to all your pages. Your site needs good backlinks (from other websites) in order to keep indexed by Google.
You've got repeating keywords in meta description and meta keywords tags in your website. Try using unique, no-repeated words on every webpage of your site. Also you may try to remove the comments from your HTML code.