Internet Information Services (IIS) is an extensible web server software created by Microsoft for use with the Windows NT family.
JSDelivr is a free public CDN for open-source projects. It can serve web files directly from the npm registry and GitHub repositories without any configuration.
Mapbox.js is a JavaScript library provided by Mapbox for working with interactive maps and geospatial data.
Unpkg is a content delivery network for everything on npm.