Pages de-indexed...

Today I noticed one of my sites that normally has around 30k pages indexed dropped off to 948.... why would that happen? I mean seriously nothing has changed.

I know others have experienced this... what happened? Did they pick back up?

 

That's very normal to search engine. Just wait and it will come back soon.

 

Yes I know its normal just wanted to know what others have experienced lately.

 

few of my rankings were on 1st & 2nd page suddenly gone but return into much higher position!

 

might come back after few days. also check at webmastertools for any crawling problems etc

 

If there google thinks some of the pages were duplicate content, then it normally doesn't show them.

Google normally 'omits' results that were/are almost similar and gives an option to query to display the result with omitted results included.

Having said this, I've personally never experienced 30K to 1K anytime before.
Other possibility is that its currently not reading all the data centers. I'm just guessing here

All Success,
~G

 

I haven't experienced that much dropped yet. my site only drop like 10% of all indexed page and still haven't recover as well...

 

Well good news the site I had the issue with is back up over 30k indexed pages. phew!

 

congrats. as we said wait for a while it will come back. ^^ i think sometime google is lazy and dont want to do a lots of works

 

Good thing its back, did you check in webmaster tool whether it was due to some problem at your side or just the normal fun and games at google.

 

The worst panic is when the index page suddenly drops out of the index completely for a day or two.

 

i have noticed a drop from 27k to 24k . it's not a big drop as you . if you did not loose your backlinks , i hope they will come back.