What would happen before a site is knocked down?

Disappering from Google.

[leunga]

I write because I would like to share my experience regarding my sites' disppearance from Google. I have multiple sites and they are disappearing from Google one by one and are following below sequence of events:

1. First a site's cache pages will be doubled suddenly
2. Stripping of descriptions (verified by site:* ) observed. This will occur progressively. At this point, you can note a traffic drop.
3. Finally, you will have all descriptions removed. By this time, traffic will be reaching zero.
4. The worst thing is that the entire domain is not seen in Google at the end.

Any one have the same experience? And how would you explain this?

[theBear]

Canonical page issues caused by a site split due to multiple valid server aliases, improper use of redirects, and if Google gets confused 302 "jacking".

Basiclly a massive long term content duplication occurs, if not caught and fixed the site will be eventually be classified as canned meat "spam" and the Google will impose the WWW equivalent of udp death.

For solutions read all of the 302 hijacking threads there are tons of them and they are huge.

You should be aware that it is now impossible to do a site:domain and see other sites unguarded 302's. One of the more recent Google rollouts. Hopefully the duplicate content caused by those in the past has also been addressed.

If you get a different page count doing site:domain and site www.domain then your site has become split. It is also possible that your IP addy[:port] has also been indexed, as can parked or vanity domains.

What caused this is up for debate, the end result isn't.

There could be other things, the other symptoms are softening in Google referals, then a massive drop after various Google updates, drops in revenue from ads, etc, etc..