Site would be optimized well for 6 months but no improvements in this situation what we can do for that. Perhaps do your homework again and better this time? I know it might sound rude but if you really have put all your efforts on optimizing a site and still you can't see results you should learn from those that had success, your competitors on the SERPs. Many factors could have impact on that
Important thing in SEO : AGE and Time
- Site age
- Quality of Inbound links (you could have thousands, but if the quality of the sites from which you have the incoming links is low the value will be low too)
- Keyword density and prominence (in title/description and body)
- Use of heading tags
Important thing in SEO : AGE and Time