Google’s Matt Cutts – Matt makes it clear, Google will never quit adjusting, changing the list items. The indexed lists will dependably be changing, the aftereffect of that change is “flux,” Matt said.
Google need to change on the grounds that the web is changing, searchers are changing, gadgets are changing and spammers are evolving.
Regardless of the possibility that the results are flawless today, Cutts said, in any case they have to deal with making them immaculate later on. Why? Since searchers will request an ever increasing amount.
So yes, Seos, you have to dependably be adjusting and changing also.