Why sites get deindexed from google?

[molan]

All my sites got deindexed from google and i've no idea why, i want to make sure it wont happen again....
what are the reason sites get deindexed from google?...and how i can make sure it wont happen again?!
thanks!
feel free to share every little thing!

[VladWorks]

Normally new sites ( less then 1yr old ) get de-indexed from Google if they are too agressive or un-natural with their link building.

Normally it happens when a site build a ton of similar backlinks over a short period of time and then does nothing as follow up afterwards.

You have to look at what you did on your sites that might be seen as sketchy.

Do you have pop-ups?
Duplicate content?
Link to some sketchy sites?
Blast your link out everywhere using software?

These are common sandbox issues.

The way to get out is:
1. Fix the errors
2. Build some quality backlinks steadily

[bigcat1967]

Normally new sites ( less then 1yr old ) get de-indexed from Google if they are too agressive or un-natural with their link building.

I agree. If people just work on their content - there would be a lot less crying about things.

Good point.

[molan]

basically i had lots of content in my sites- all original...
so how can i know how many backlinks i can send for new sites, i mean i sent backlinks with some article directories softwares , but i scheduled it so its a bit weird..
anyway i guess i just have to be much more patient this time and do mostly manuall backlinks at least in the first couple months

[rahmanpaidar]

Using automated tools could be one of the factors for your site to be deindexed.

I suggest you to take a look at Google Webmaster Tool Guidline:

Webmaster Guidelines - Webmaster Tools Help

I think all those paraghraphs are gold. The page also answers a lot of newbie questions.
Also take a look at the following page and scroll down to the last paraghraph:

Duplicate content - Webmaster Tools Help

So your problem is unlikely be due to the duplicate content.

[molan]

what do you mean by auto blogs feeding?

is that the Writing Settings section in wordpress

This section:

"Update Services

When you publish a new post, WordPress automatically notifies the following site update services. For more about this, see Update Services on the Codex. Separate multiple service URLs with line breaks."



if so than i had there lots of ping services i putted there....can someone tell me what i should write their if anything?
thanks!

[molan]

what do you mean by follow up?

[jerytohn]

Originally Posted by VladWorks

Normally new sites ( less then 1yr old ) get de-indexed from Google if they are too agressive or un-natural with their link building.

Normally it happens when a site build a ton of similar backlinks over a short period of time and then does nothing as follow up afterwards.

You have to look at what you did on your sites that might be seen as sketchy.

Do you have pop-ups?
Duplicate content?
Link to some sketchy sites?
Blast your link out everywhere using software?

These are common sandbox issues.

The way to get out is:
1. Fix the errors
2. Build some quality backlinks steadily

Seriously, can you even tell the difference between de-indexed and sandboxed?

They are two different things altogether, you know?

The misinformation given away is just astounding.

If you do a search in Google.com for - site:www.yourwebsite.com - and your website doesn't appear, it is de-indexed.

If your site still appears but it just doesn't rank well no matter what you do, it may be sandboxed.

[Bai_Mike]

The sites that get deindexed are mostly spam or do not have relevant seo keywords to the site itself.

Sites that have aggressive link building are also deindexed.