Since Google’s Speed Update is coming this month, John Mueller was asked to clarify what me meant when he said the update will work at “more of a gradual scale.”  Mueller said in a recent interview that he told participants that the “the faster you can make your pages the more we can take that into account. And it’s not so much that it’s like it’s too slow or it’s faster.”

This could be viewed as contradictory to the original announcement where Google said this update “will only affect pages that deliver the slowest experience to users.” So Barry Schwartz asked Mueller about this one on Twitter.

He reiterated the earlier guidance that “this only affects the slowest sites” adding that “those can incrementally improve” but went on to say that “ideally, you’d significantly improve the speed.”

Mueller also confirmed that Google is “still aiming for this month” for the rollout. He explained once again that “if your site is reasonably fast, tweaking won’t change things.”

So if your site is already fast, then it won’t change anything in regards to your ranking (as far a the Speed Update goes) if you try making it any faster.  But, if you’re site is slow, even incremental change could end up helping.

Here’s the tweet:

 

In the following video, John is talking about the gradual speed improvements a week ago in this webmaster hangout at the 10:18 mark:

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