It sounds like Google has discovered your new site and included it in the index but it has not found enough quality signals for it to rank above more established websites.

Here are some general tips for new websites looking to rank in Google:
1) Don't settle for the minimum, exceed expectations
2) Make sure to have lots of unique, relevant text on all pages you care about
3) Go back, if you are like 99% of webmasters you didn't put enough valuable content on the page
4) Make sure you have good usability on your page
5) Make sure you have good internal link navigation
6) Learn about link development and do it
7) Buying 500 directory links for $10 is not link development
8) Building partnerships with sites that refer real traffic is link development
9) Brand yourself

Once you build up enough quality signals you will start to rise above the competition in the rankings.

Make sure to have lots of unique, relevant text on all pages you care about

This used to be important, but over the past few years Google has made changes to its ranking algorithm that increase the weight of other factors at the expense of relevance.

Might help to work in the other direction. Look at your logs. See what search terms were used by the people who actually do land on your site. (Assuming for the sake of discussion that you're able to see at least some of the q= terms.) Build outward from there.

If some searches are obviously wrong-- you don't have what the searcher is looking for-- tweak your site so those terms don't trigger search-engine hits followed by immediate retreats. You don't want them, and they make you look bad to search engines.

If some nice terms come through in the 4-to-10 range, work on making yourself more attractive so you can claw your way a little higher. But check first: If you're no. 4 and nos. 1 through 3 are amazon, wikipedia and youtube, you're not going to go any higher.

Thank all.

But this domain is not new website.it had run about 5 years.the begin of this year,we found we can't find by our keywords.and we update by css,but still do not find and still can list by site: command on google.

I had busy this web about 4 months.so tired.

Please help me .very thanks for you.
.

[edited by: Robert_Charlton at 1:46 am (utc) on Apr 18, 2013]
[edit reason] removed domain name, per Charter [/edit]

Do you have web analytics installed? If so then did you lose your traffic on a particular date or slowly over several weeks or months?

Without any analytics, you might have a difficult time tracking down the exact cause.

xworker - We don't allow public reviews of sites here, so we can't allow your domain name to be posted. Perhaps we can help you, but it is going to take some work.

Several initial questions, to determine whether it was link-related, or on page-related, or both.

the begin of this year,we found we can't find by our keywords

Are you looking at rankings only, or do you have ways of checking traffic?

Do you have a Google Webmaster Tools account? Analytics? These would give you more precise traffic patterns and perhaps help pin down dates. Google confirmed that the last data refresh was on Jan 22 of this year...

Google confirms Panda data refresh rolling out
http://www.webmasterworld.com/google/4538407.htm [webmasterworld.com]

In about the tenth post in that thread, I post the following...

It's worth noting in all these updates that Google is continuing to link back to the May 6, 2011 Google Blog article by Amit Singhal on the kinds of signs which Google is considering when determining quality....

More guidance on building high-quality sites
[googlewebmastercentral.blogspot.com...]
You're going need to look at your site very critically and see whether the quality of your site measures up to the increasingly high levels that Google is setting.

Have you had a native English speaker look at the quality of writing on your site?

Additionally, in case your problems are link related...

- did you control the inbound links to your site?
- is the quality of your content good enough or unique enough to suggest that your inbound links were natural?
- if you had a Webmaster Tools account, did you receive any messages from Google about the quality of your links?

Thanks good guys.

I have account for google webmaster.and we can find this web by keyword by bing,and yahoo.and have good position by some keyword.

we have no google Analytics,but we have other analytics,we can get very few ip from google image one month.

now we update some pages for this web one week and update by sitemap.xml ,and I found the google can index 3-4 pages per 3 days or one week.

now I do not know :
- did you control the inbound links to your site? ----how much inbound links per page?

-if you had a Webmaster Tools account, did you receive any messages from Google about the quality of your links?
---where can find the quality of your links

thank you for your help in advance

I found the google can index 3-4 pages per 3 days or one week.

This sounds like you're not getting crawled very much or may have a structural issue if that's all the pages you can get indexed in a day or week. I'm working on some "decent sized" sites and have had 1500 new pages indexed in a day recently.

Have you made changes to the site before or after the ranking change?

@xworker - FWIW you can have your site reviewed by WebmasterWorld members after contributing a couple of questions/answers or posts. It might throw up some interesting inputs to assist. [webmasterworld.com...]

But for SEO / Goog type things this might be the best place

To add to Whitey's post, you need to be a paid Supporter to qualify for the review. IMO, it's a bargain. I've seen these reviews help some sites a lot (when site owners follow up and fix their sites).

Have you made changes to the site before or after the ranking change?

Yes, important consideration. Also check whether someone is duping your content. Search for, say, 4 or 5-word unique text strings (in quotes) and see whether it's appearing on other sites. Don't just try one phrase... try several, case the text is broken up on sites that might be scraping you.

where can find the quality of your links

This is a long discussion that I'll let others flesh out. Quick answer is that Google wants "freely given, editorial links". Links you place yourself, profile links, free-for-all directory links, etc, are liable to be hurting you more than helping.

the pr always is PR2.

I have to say this website drop from begin of last year .maybe this time.I am not clear.

before we use table for all web.now we use css for change.and additional extra dir for update product now.since this is company website,have no more data on web,just 20 pages before.

regarding the index
after we update by css,and update new page about 80 pages within one month,those 80pages always no index this month.now we still update some pages each month,and find few new index increase each update.
but still can't find this website within 500 pages by keywords on google.

I want to enter google seo,but I can't.

so I come here for help.

before we use table for all web.now we use css for change.

Make sure the change to CSS styling is as understandable in the source code as the tables were to a search engine. I know "everyone says CSS is better", but what I've found as far as rankings go, what the algo "understands" the best is really better and if that means tables, then use tables.

There's been some "angst" against tables for some reason, but they're still valid as of HTML5.1 so there's no reason to quit using them if they're more structurally correct and more understandable by an algo than a "pure CSS" display of the same information.

I afraid this web had deny by google.
even if we make more,even if google still index,we still do not find by keywords on google.
we can't give up this web since we still can get few ip from bing or yahoo.

it is my agony.