Once upon a time, Internet Explorer so dominated the world of browsers as to sprout lawsuits and government intervention, world-wide.
No more.
IE (all versions) is now used in less than 50% of all website traffic in the world:
Internet Explorer’s Share of Web Traffic
Other fascinating information in this article: Mobile (smartphone) and tablet (iPad) traffic is now at 6%. Rising, but still a small fraction of traffic to most websites and in most industries.
And Safari (the browser on IPhones and iPads) is responsible for almost 2/3 of that.