@xyz/whois/dist/examples/subdomain-usage.js

A powerful TypeScript/JavaScript tool for comprehensive domain analysis, featuring detailed WHOIS data with registration dates, registrars, and domain status. Offers SSL certificate extraction (with PEM support), DNS records, and server details. Includes

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const index_1 = require("../index");
/**
 * Example demonstrating subdomain support in the domain-info-fetcher package
 */
async function main() {
    try {
        // You can replace these with your preferred domains
        const domains = [
            'www.github.com', // Subdomain that is typically stripped by formatDomain
            'blog.github.com', // Regular subdomain
            'github.com', // Root domain for comparison
        ];
        console.log('Demonstrating subdomain support:\n');
        for (const domain of domains) {
            console.log(`\n${'-'.repeat(50)}`);
            console.log(`Analyzing domain: ${domain}`);
            // Demonstrate subdomain extraction functions
            const subdomain = (0, index_1.extractSubdomain)(domain);
            const rootDomain = (0, index_1.getRootDomain)(domain);
            console.log(`Subdomain: ${subdomain || 'None'}`);
            console.log(`Root domain: ${rootDomain}`);
            // Fetch domain info
            console.log(`\nFetching information for ${domain}...`);
            const domainInfo = await (0, index_1.fetchDomainInfo)(domain);
            if (!domainInfo) {
                console.error(`No domain information returned for ${domain}`);
                continue;
            }
            // SSL Certificate Information
            console.log('\n🔒 SSL Certificate:');
            console.log(`  - Issued to: ${JSON.stringify(domainInfo.sslData.subject)}`);
            console.log(`  - Valid: ${domainInfo.sslData.valid ? '✅ Yes' : '❌ No'}`);
            console.log(`  - Valid until: ${new Date(domainInfo.sslData.validTo).toLocaleDateString()}`);
            // DNS Information - Focus on subdomain handling
            if (domainInfo.dnsData) {
                console.log('\n🌐 DNS Records:');
                console.log(`  - A Records: ${domainInfo.dnsData.A.join(', ')}`);
                console.log(`  - CNAME: ${domainInfo.dnsData.CNAME || 'None'}`);
                // For subdomains, MX, TXT, NS records are typically from the root domain
                if (subdomain) {
                    console.log(`\n  Root domain (${rootDomain}) records:`);
                }
                if (domainInfo.dnsData.MX.length) {
                    console.log(`  - MX Records: ${domainInfo.dnsData.MX.length} records found`);
                }
                if (domainInfo.dnsData.NS.length) {
                    console.log(`  - NS Records: ${domainInfo.dnsData.NS.length} records found`);
                }
                if (domainInfo.dnsData.TXT.length) {
                    console.log(`  - TXT Records: ${domainInfo.dnsData.TXT.length} records found`);
                }
            }
            else {
                console.log('\n🌐 DNS Records: Not available');
            }
        }
    }
    catch (error) {
        console.error('❌ Error in example:');
        if (error instanceof Error) {
            console.error(`   ${error.message}`);
        }
        else {
            console.error(`   ${String(error)}`);
        }
    }
}
// Run the example
main().catch(console.error);