is-valid-domain
Validate domain name in JavaScript
Demo
https://lab.miguelmota.com/is-valid-domain
Install
npm install is-valid-domainUsage
const isValidDomain = require('is-valid-domain')
isValidDomain('example.com') // true
isValidDomain('foo.example.com') // true
isValidDomain('bar.foo.example.com') // true
isValidDomain('exa-mple.co.uk') // true
isValidDomain('xn--80ak6aa92e.com') // true
isValidDomain('_dnslink.ipfs.io') // true
isValidDomain('exa_mple.com') // false
isValidDomain('-example.co.uk') // false
isValidDomain('example') // false
isValidDomain('ex*mple.com') // false
isValidDomain('*.example.com') // false
isValidDomain('*.com') // false
isValidDomain(3434) // false
isValidDomain('foo.example.com', {subdomain: true}) // true
isValidDomain('foo.example.com', {subdomain: false}) // false
isValidDomain('*.example.com', {wildcard: false}) // false
isValidDomain('*.example.com', {wildcard: true}) // true
isValidDomain('*.example.com', {subdomain: false, wildcard: true}) // false
isValidDomain('はじめよう.みんな') // false
isValidDomain('はじめよう.みんな', {allowUnicode: true}) // true
isValidDomain('ai.') // false
isValidDomain('ai.', {topLevel: true}) // trueview more examples
Test
npm testContributing
Adding new domains:
- Add second level domain to
data/second_level_domains.csv - Run
npm run generateto generate JSON map file - Run
npm test
FAQ
-
Q: Why is trailing dot
.in domain names verified astrue?