dodying

• https://icons.duckduckgo.com/ip2/{hostname}.ico
• https://www.google.com/s2/favicons?domain_url={hostname}
• https://favicon.yandex.net/favicon/{hostname1}/{hostname2}/
• https://f1.allesedv.com/16/{hostname}
• http://grab-favicons.herokuapp.com/api/v1/grab-favicons/?url={hostname}
• https://besticon-demo.herokuapp.com/icon?url={hostname}&size=80..120..200
• http://favicongrabber.com/service-api-reference

ryasmi

var wrapURLs = function (text, new_window) {
  var url_pattern = /(?:(?:https?|ftp):\/\/)?(?:\S+(?::\S*)?@)?(?:(?!10(?:\.\d{1,3}){3})(?!127(?:\.\d{1,3}){3})(?!169\.254(?:\.\d{1,3}){2})(?!192\.168(?:\.\d{1,3}){2})(?!172\.(?:1[6-9]|2\d|3[0-1])(?:\.\d{1,3}){2})(?:[1-9]\d?|1\d\d|2[01]\d|22[0-3])(?:\.(?:1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.(?:[1-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(?:(?:[a-z\x{00a1}\-\x{ffff}0-9]+-?)*[a-z\x{00a1}\-\x{ffff}0-9]+)(?:\.(?:[a-z\x{00a1}\-\x{ffff}0-9]+-?)*[a-z\x{00a1}\-\x{ffff}0-9]+)*(?:\.(?:[a-z\x{00a1}\-\x{ffff}]{2,})))(?::\d{2,5})?(?:\/[^\s]*)?/ig;
  var target = (new_window === true || new_window == null) ? '_blank' : '';
  
  return text.replace(url_pattern, function (url) {
    var protocol_pattern = /^(?:(?:https?|ftp):\/\/)/i;
    var href = protocol_pattern.test(url) ? url : 'http://' + url;
    return '<a href="' + href + '" target="' + target + '">' + url + '</a>';
  });
};