It has always been a little unclear how Google handles their international market. We know they have engineers across the world, but anyone that has tried to search from outside the US knows the results can seem like what Americans would see five years ago: a few good options mixed with a lot of spam. That’s a little bit of a hyperbole, but Matt Cutts says we can expect to see it continue to get better moving forward.
According to Cutts’ recent Webmaster Help video, Google does fight spam globally using algorithms and manual actions taken by Google employees stationed in over 40 different regions and languages around the world. In addition, they also try to ensure all of their algorithms will work in all languages, rather than just English.
SEO Roundtable points out you could see the international attention to Google’s algorithms when Penguin originally rolled out. At first it was only affecting English queries, but was released for other languages quickly after. With Penguin’s release however, all countries saw the release on the same day.
Matt Cutts did concede that English language queries in Google do receive more attention, which has always been fairly obvious and understandable. There are far more searchers there and that is the native language of the majority of engineers working for the company.