I started one of my sites in the first week of this year. We got a lot a weekly fresh new content. After 2 months we got 250 visitors a day and then we where not in Google anymore. So I assume that we where in the Sandbox, we where back in June after 3,5 months. After then the website is a few days good in Google and we got 100 visitors a day, and sometimes the site can't be found for a few days. This process is going since half of June. Is this still the Sandbox effect?