How Search Engines treat Websites down for 6 months?

How search engines scoring works?

[MrRoy]

Hi Everyone

Just need little help in understanding a very simple thing (which looks simple but somehow it is creating confusion in my busy mind)

I had a website for which I have done all sorts of SEO related task to rank it at the top of search engines. But after 6 months, due to some reason, I had to bring it down (site does not exist anymore). As a result all the pages automatically got removed from search engines index. The website does not have any pages indexed at search engines.

Now say 6 months have passed by and suddenly I am willing to put it back online.

The question is:

Will search engines (google, yahoo and bing) will consider all the seo work done previously and will assign back the score it had obtained 6 months back? or they will start treating it as a new website and all the seo work has to be done from scratch?

Thanks for your help in advance

Regards
MrRoy

[buckworks]

The answer to this would depend somewhat on how you're defining "SEO work", but consider that most of it would need to be done from scratch.

The biggest concern would be that if the site was completely offline you'd have lost a lot of the links you gained from promotions the first time round.