Google’s +1 buttons have only been out for about a month, but they’re already more common than the tweet button on major web destinations.
BrightEdge, an enterprise SEO platform provider, analyzed the 10,000 largest sites on the web and found a 33% surge in placement for Google’s +1 button during the past few weeks. The company found that +1 buttons are now on 4.4% of those sites, up from 3.6% in June. Meanwhile, Twitter’s plug-ins are displayed on 3.4% of the sites.
Both Google and Twitter trail far behind Facebook, whose plug-ins, most notably its “Like” button, are on about 20% of the sites’ front pages. Note: Although the chart below lists Twitter’s plug-in as a “Twitter Share,” BrightEdge CEO Jim Yu says it refers to the Twitter tweet button.
To put +1′s growth in perspective, Facebook’s “Like” button showed up on 50,000 websites a week after the company announced a web-wide “Like” button last April. It was on more than 100,000 sites within a month. Twitter, meanwhile, made its tweet button available to publishers last August.
A Google rep declined comment on the report.
The study also notes adoption for links to Facebook Pages or Twitter feeds on front pages. Such links are much more popular than buttons, but still, more than half — 51% of the sites — have no Facebook or Twitter link on their front pages.