There are 200 plus rankings factors for a website to get ranked in Google ans Website speed is one of them... Though Google has not officially revealed that ever but first warning that site speed was on Google’s radar came last November, when Cutts said there was “strong lobbying†inside Google to account for site speed as a new ranking factor. Speaking at SMX West last month, Google’s Maile Ohye showed a slide indicating that delays of under a half-second impact business metrics.
Where Page Speed Fits in Google’s Algorithm
Google’s algorithm has about 200 different ranking factors, and even though Google is taking the unusual step of publicly announcing a new factor, Cutts says site owners shouldnt overestimate the impact of page speed on rankings.
“Quality should still be the first and foremost concern [for site owners],†Cutts says. “This change affects outliers; we estimate that fewer than 1% of queries will be impacted. If you’re the best resource, you’ll probably still come up.â€