Figma 国内加速的问题

const nslookup = require("nslookup")

const DNSServers = [
    { ip: "8.8.8.8", name: "Google DNS" },
    { ip: "180.76.76.76", name: "百度 DNS" },
    { ip: "223.5.5.5", name: "阿里 DNS", fast: true },
    { ip: "114.114.114.114", name: "114 DNS", fast: true },
    { ip: "1.1.1.1", name: "Cloudflare DNS", fast: true },
    { ip: "9.9.9.9", name: "Quad9 DNS" },
    { ip: "119.29.29.29", name: "腾讯 DNS" },
    { ip: "4.2.2.1", name: "level3.net" },
]

const Hostnames = [
    {
        hostname: "s3-alpha-sig.figma.com",
        testUrl: "https://s3-alpha.figma.com/profile/9b3f693e-0677-4743-89ff-822b9f6b72be",
    },
    {
        hostname: "www.figma.com",
        testUrl: "https://www.figma.com/api/community_categories/all?page_size=10",
    },
    {
        hostname: "static.figma.com",
        testUrl: "https://static.figma.com/app/icon/1/icon-192.png",
    },
]

/** 通过 DNS 解析域名的 IP, 返回 IP 列表 */
const server = "8.8.8.8"; 
Hostnames.forEach(e => {
    const re = new RegExp("."); 
    const name = e.hostname; 
    nslookup(name)
        .server(server) // default is 8.8.8.8
        .timeout(3 * 1000) // default is 3 * 1000 ms
        .end(function (err, addrs) {
            if (err) {
                console.log('ERROR'); 
            } else {
                // 更加易懂的写法是 new RegExp("."); 
                console.log(`  DNS(${name} by ${server}):`, addrs.filter((x) => x && re.test(x))); 
                // 其中 /./ 是正则表达式，过滤掉没有点的元素 
                // <https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_expressions>
                // console.log(`  DNS(${name} by ${server}):`, addrs.filter((x) => x && /./.test(x)))
            }
        })    
});