This is a Node.js module available through the npm registry.
$ npm install huntdown.js
const HuntDown = require("huntdown.js");
console.log(HuntDown("username"))
/* Return
[
'https://2Dimensions.com/a/username',
'http://forum.3dnews.ru/member.php?username=username',
'https://www.7cups.com/@username',
... 200+ more items
]
*/- 293 Sites and more soon !