Lost positions, how to get them back?

[onmaso]

Ok, like 1 year ago my site was doing good in google search engine. But I decided to change CMS and design of the site. Did some mistakes like, changed site links structure (when I notice it later I changed it back), then some of the pages were lost because I simply didn't need them on the new cms and there were no feature of keeping them.

Site has a  lot of backlinks and was strong in rankings. It's been almost a year or maybe already a year and I can't get even to top100 for those keywords... But I was in (top10-20)

Site is still getting links, ranking well on yahoo and baidu, but google, just won't let my main keywords to come back. I rank for some that doesn't make sense to me and I even wasn't working on them.

[onmaso]

To restore those old urls is not possible. (~400 of them). I've removed them (via google webmasters), but I still see them as errors in google webmaster tools (but they are decreasing slowly).

[OcularConcepts]

Ryan is spot on, without specific examples, it is difficult to tell you how to regain the lost ground. Some pointers:

1. Restore all the old webpages if possible.

2. Do Not 301 redirect old URLs

3. If the site is in a sub-folder, bring it back to root (happens a lot with Drupal if your developer is not careful)

4. Build links to the internal pages and not just the home page.

5. Look into Google Webmaster Account, specially how Google sees the site as a crawler and the "Settings".

Cheers.

[RyanKent]

It's not about how can I improve, it's about how to get back to where it was.

I am trying to assist you and respond to your question. From what I am seeing, it is EXACTLY that you are trying to improve.

The fact you ranked well for the same site isn't relevant one year later. Search engine results are extremely dynamic. Over the past year some of your competitors disappeared, other new ones have appeared, numerous algorithmic changes have been made, your CMS changed and possibly more things such as your content has changed as well.

There is no magic bullet to getting your ranking back to where it was a year ago.

[David_ODonnell]

Ryan is right, if you want a specific answer, you'll need to provide specific examples.

[onmaso]

Well I explained You what was the cause of this happening.

I've explained what I did to make this fixed, but didn't help.

It's not about how can I improve, it's about how to get back to where it was.

[RyanKent]

Without specific examples your Q&A is just a general "how can I improve my ranking" post. Can you share an example of a page that you feel should rank well, along with the keywords you are trying to rank for so we can take a look?