The mobile friendly update hasn’t had the impact that many expected, and as Google indicated the roll-out of the update will take up to three weeks.

As the Mobile Friendly update is gradually implemented, more and more webmasters are beginning to see the effects, both on their website’s rankings and the search engine results in general. Google’s John Mueller revealed in a Hangout that the new algorithmic update has been completely rolled out in some of Google’s data centres, but not all.

This means that when searching you may get different results depending on the data centre that you connect to, and we can expect to see fluctuations in rankings until the algorithm is fully rolled out across all data centres.

Some webmasters may believe that their websites have not been negatively impacted by the Mobile Friendly algorithm, and in the coming weeks they may be surprised to see a drop in their rankings.

John Mueller commented: “It’s definitely rolling out. I know in some of the data centers its already rolled out completely. So that is something where I think you will probably see that change over the course of a week, maybe a week and a half – something like that.

From the first day to the next day, I don’t think you’ll see a big change. But if you compare last week to next week, then you should see a big change.

And I’ve seen some blog posts out there have noticed it’s different, and tried to document the difference between the desktop results and new mobile results. So there are definitely people noticing it.”

For those who would like to hear it straight from John, here is the Hangout: