Mine too, it was dropped, the only thing i have done, is build do follow links and it is back to normal. You might want to create quality backlinks too. Good luck
Wait a few days and see if it bounces back. The SERPs change all the time and you should only worry if your site disappears for extended periods.
This is not unusual. I have seen a few sites in the last day get dropped and one just came back. I think there may be bit of a dance going on right now.
I wouldn't worry too much about it...Its getting really common lately as google is changing its algarithm. Just carry on backlinking like usual and it will settle again either tomorrow or a few days time.
The seventh page? did you get any traffic from the seventh page? I wouldn't of thought dropping out of serps entirely would make any difference to being on the seventh page.
Lately google dance is on the rise and they are performing rock-&-roll this time around with their algorithm, it might take a while until the test period comes to an end.
Since this was May, there was a huge PR update in May. Many sites linking to you might have had a drop in PR and thus, reflecting on your website. Keep building high quality links.
Also curious, did you get much traffic from page 7? And what page is it on now? I think Google developers like to see the whole world squirm in response to their every algorithmic tweak. Oh the power!
I checked my website rank with Goolge SERP, I think its showing results with google.com not with google.co.in or google.ca
When you use the command site:sitename - does your site show to have any pages indexed? If so, then it probably just got bumped back in the rankings. For a new site this is nothing to worry about. Unless your site is 8 - 12 months old, its perfectly normal for new sites to float around in the results pages. Just about all of my sites went from page 3 to page 60, back to page 2 then suddenly past page 100.
Add add unique content and build backlinks to your site, also link to 1-2 authority sites in your niche.
I think your website is penalized by Google. And someones say its sandbox. If this situation continues for a long time, be sure that you are penalized by Google and in this case its very difficult in most cases that your website to return to previous position.