Hello! My site have low search positions (4+ page), but have many links with ancors. All content of site is 100% unique. Domain age 1 year and 2 months. What is a maximum time of "sandbox" filter punishment? Or it maybe some other filter from google? Thank you for your answers.
Generally it can be beat in 6-12 months but sometimes it can take a year and a half if you are unlucky.
What I have found useful is redirecting an aged 301 website to your new domain; it seems as though I have been able to have a higher link velocity without getting penalized. Also you can use the redirected site as a pusher site to give more link juice to your money site. Sometimes it is easier to learn from your mistakes and just start over then to try to get a website to recover from a penalty
you can get out of the sandbox by using google's pay per click services. other than that you are stuck (for x=?) if your sites keywords are in demand or your content is questionable.
Well if you're n page 4 or 5 you're obviously not sandboxed???? I'd rather take a look at your competition and scale my SEO efforts, seems like your problem is more like difficult to rank keywords? If you would be sandboxed you would no where to be seen near page 4.... Just keep building strong links... Get some .edu and .gov ones under your belt and what ever you do, don't slow down the efforts you've put in so far...