Robert_Charlton - 2:09 am on Apr 18, 2013 (gmt 0)
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
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
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?