js移除掉当前页面的所有外链 优化SEO 去掉页面特定域名的链接

// 移除掉所有非mczaiyun.top的外链
function removeOutLink () {
  var allLink = document.querySelectorAll('a[href]')
  var len = allLink.length
  for (var i = 0 ; i < len; i++) {
    var linkHost = allLink[i].host
    if (isOutLink(linkHost)) {
      allLink[i].setAttribute('href', '#')
    }
  }
}

// 判断是否是外链
function isOutLink (host) {
  var inLinkArr = ['mczaiyun.top','www.mczaiyun.top', location.host]
  return !inLinkArr.includes(host)
}

window.onload = function () {
  removeOutLink()
}