I created new content for my site (new page) I was surprised how quickly it was indexed in google and ranked on page 3 of google within 3 days!! Then after 10 days it dissapeared. It is no longer indexed!! I was wondering if anyone knew what the issue could be? My site is established over 2 years old. I'm aware that it usually takes around 3 months for a new page to get indexed for established sites so being indexed after only 3 days did baffle me but not as much as being deindexed. So if anyone has had similar issues or might know what the problems are please share!!
I think there is no problem here, it usually happens for new contents and new sites to rank immediate then drop. The best thing to do here is to build links for that page so it could rank again..
Does your new content get indexed after three days of publication? It's too bad, because now google crawl more frequently than before. My new blog's content get indexed within few minutes of publication. You may use ping service, to make google bot know that you've updated your site. And you must have to use google webmaster tools to submit sitemap to google. If your any page/post get deindexed, internal linking may do better to return the page/post. How to do it? If your any content get deindexed, write a new article relevant to the old content and place a link of the deindexed article. It may help.
This illustrates the importance of building backlinks consistently over time! Once your site is ranked in google, you have to maintain it by consistently building backlinks to it so that you keep your ranking.
I have experiences similar with most of my sites until now. This is a common of Google activity. You should not worry about it too much. You will see those de-indexed content pages are being re-indexed again in a soon. I have tried to figured out the exact reason but not found yet.
There might be a problem on your blog wherein crawlers can't access it. But do not worry, it will get back soon.
Sandboxed. I've experienced this with almost all my sites. Basically, it's just testing your site, and you should be back in a few days to weeks time if you pass. The way I've used to get out of the sandbox FAST is to build an authority backlink to the site when it is de-indexed. Of course, if you don't do anything - it will index you ultimately if it finds your content to be worthy. The only time I failed to get included again was when I used duplicate content.