America Is #1 at Something — Unfortunately, It’s Porn Websites
America is once again leading the world at manufacturing something, unfortunately it’s not cars, or the latest smart phones or tablet computers. We’re leading the world in the hosting of internet porn websites. And we lead by a lot. ...the USA hosts 60 percent of all the porn websites online. That figure translates to 428 million webpages. The next closest on the porn hosting list...is the Netherlands.

When It Comes To Internet Porn, The US Is Firmly Ahead Of Everyone
the Top Ten nations and Top Twenty states that serve up the most illicit content... and the winner is U-S-A! 66% of the porn hosted in the US comes from California and interestingly only 0.62% of all porn sites use the ".xxx" domain name. Of course, hard numbers are tough to come by, but as ExtremeTech illustrates, Xvideos - the largest porn site on the web - gets a stunning 4.4 billion page-views per month...