Delisted sites?

Anyone else have a bunch of sites completely delisted in Google?

I'm still trying to piece together particularly why it happened -- there isn't much of a common theme among the sites other than their industry.

Going from a climbing rank to "site: " yielding 0 results is a very big shift. My gut feeling is that something goofed at the Googleplex, but I need to see that it is happening to others before I can confirm this.

Cygnus

I DO have a subdomain that Google doesn't seem to like at all, even though both Yahoo and MSN had it for breakfast and loved it. Not a lot of links pointing to it, but some.

Sheesh, Google(bot) is just sooooo picky these days.

PS: I don't want to add to the "Google is making room because the index is full" rumour of course...

This is a bit different; the domains lost all got lost in the past two days...

They were heavily spidered, and then boom...1 spider a day for the past two days with 0 pages indexed.

Is something wrong with their cache server? Another domain I manage for a different client is showing caching from last October, when the pages indexed haven't been there for at least a year.

Methinks something broke.

If you post the link I'll look in to it for you.

I've been hearing a lot of cache problems with G over the last couple days. I'm guessing its an error or update of some sort. Wait it out...

I lost a 3 year old automotive forum with over 355,000 pages indexed. Today 0 witha site: search. WTF google.

Are these old sites? New sites?

Mine has been registered since 99 and active since 2001.

Mostly older sites EGOL -- 3 years for the oldest one, 1 year for the newest [sorry, can't post these URLs]

So far I've ruled out any linking issues, IP canonicalization screw-ups, and am looking to see if there was major down-time when the bots came around (which wouldn't normally result in delisted...odd).

1EightT, I recently lost an automotive domain too, but it came back with more pages than ever before indexed, even though the pages don't exist...very odd.

So, there definitely seems to be some sort of cache issue going on. At the very least I hope Google recognizes this after all the e-mails I sent for reinclusions requests.

Cygnus

Where did you send the reinclusion requests? I'll do the same and see if they get the hint.

The only two things I did differently in the last couple months were.

1) started using link vault (my other 12 or so sites are still listed fine and they use it as well

2) used google sitemaps (again my other indexed sites use it as well)

I can't figure this out. Hopefully it is just a problem related to the last update that they plan on fixing.

I can't see how it isn't a problem on their end really.

For the reinclusions requests, you can try a few different things:
E-mail it to help@google.com
Submit it through http://www.google.com/support/

Link-vault hasn't caused me any problems on a few domains, so you can probably rule that out...don't know about the google sitemaps; I've elected to not touch it.

*So far I've ruled out any linking issues..*

I take it that means no interlinking?

Correct; much care is taken to not interlink -- the sites elicit links from similar link partners (because it makes sense, given theme), but the domains themselves are not interlinked.

the day my site gets de-indexed is the day that i give up....lol ya right

If that were the case, then every SEO I know would have already gotten out of the game.

As I recently explained to this client, no matter how good the sites are that you make, if SEM is the primary focus, then one is still at the mercy of an engine's ability to accurately do its job.

This stuff happens; we'll bounce back, but the biggest question is 'when'.