hmm did you violate any terms which might be the reason of de-indexing?
Keyword Page Experts – Experiment | Running Online Business
I was using that page as an experiment to rank first for 'Keyword Page Experts' and in a matter of hours after it's creation it was ranked number one. I just checked on it now and it's no longer indexed. I can't find it anywhere in Google. Now, sometimes I notice my new posts appear in Google - disappear - then come back and it was as though nothing had happened. However, I suspected that someone (here at NetBuilders?) reported my blog post to Google and it was deindexed.
I have nothing to really support this claim other than my 'gut feeling.' So, if someone would report a post like that, which is a self-titled 'experiment,' is it likely that Google would remove it? And if they did, would they leave any trace? Because I see nothing in my Google Webmaster Panel.
So what do you think happened?
Reported and deindexed? Or nothing to worry about?
Well, it's just that one page - and there isn't anything that I see that could possibly have violated anything.
Unless Google deindexes pages that it identifies as SEO experiments...
I'm seeing your post in the number one position.
Awesome! It's back where it should be.
For some reason, that happens on numerous occasions.
A post will disappear from the Index and then reappear, as though nothing had ever happened. Does anyone have an explanation for this?