Survey Finds JQuery Library Running on Half of All Websites
And the numbers look even more impressive if you limit the survey to the top 10,000 sites (in terms of traffic) where the number jumps to 58.8 percent (curiously, if you limit it further to the top 1,000 use falls to 46.2 percent).
What we find most surprising (dare we say depressing?) about W3Techs’ data is that even if a site uses another library like Prototype, Dojo or MooTools there’s a good chance that it’s using JQuery as well, which is probably overkill in most cases. JQuery alone certainly isn’t responsible for the fact that we’re building a fatter, slower web, but if you’ve got two JS libraries loading on your site you might be doing it wrong.