| 1:11 am on Jul 8, 2011 (gmt 0)|
It's not necessarily a penalty - it could be a sign of one, but it could also be a bug at Google.
Have you lost ranking positions for keywords that many people actually search on?
| 1:32 am on Jul 8, 2011 (gmt 0)|
Home page not first often indicates a problem on the site itself.
Check both of these out: [site:www.example.com] and [site:example.com -inurl:www]
One of them should return zero results.
| 1:41 am on Jul 8, 2011 (gmt 0)|
I think it's something strange at Google, I have two fairly new sites where the home page shows up as #9 and #10 on a site: command, and I'm pretty sure there's no problem with them.
| 4:51 am on Jul 8, 2011 (gmt 0)|
wait, sometimes it comes back.
| 7:45 am on Jul 8, 2011 (gmt 0)|
If it isn't back in ~2 weeks, start looking for problems on the site. I've just seen a homepage drop to ~55 in a [site:www.example.com] listing for a week or two, and then recover. There were major changes going on in the site architecture while that was happening. It recovered several weeks ago, and is back at position 1.
| 2:25 pm on Jul 8, 2011 (gmt 0)|
The homepage has been on page 33 over a week now even more pages have been indexed ever since.
The site is fairly new and Google traffics have been slightly dropped off. It is supposed to increase due to more content additions.
It's indexed under example.com only. Do site:www.example.com will get no return.
There were some major changes since it is still under construction.