How to Validate a Domain Name in Node.JS

Domain name validation can be a very useful tool to have around. So, how can we get this implemented without making it into a major production? Easy, we will use an API to get the job done for us.

Install the API client by using npm install:

npm install cloudmersive-validate-api-client --save

After the installation has completed, we can access our function for validation of domain names:

var CloudmersiveValidateApiClient = require('cloudmersive-validate-api-client');var defaultClient = CloudmersiveValidateApiClient.ApiClient.instance;// Configure API key authorization: Apikeyvar Apikey = defaultClient.authentications['Apikey'];Apikey.apiKey = 'YOUR API KEY';// Uncomment the following line to set a prefix for the API key, e.g. "Token" (defaults to null)//Apikey.apiKeyPrefix = 'Token';var apiInstance = new CloudmersiveValidateApiClient.DomainApi();var domain = "domain_example"; // String | Domain name to check, for example \"cloudmersive.com\".  The input is a string so be sure to enclose it in double-quotes.var callback = function(error, data, response) {if (error) {console.error(error);} else {console.log('API called successfully. Returned data: ' + data);}};apiInstance.domainCheck(domain, callback);

Enter in your target domain name and it will be validated, it’s as simple as that. You might also like a similar function that looks up domain WHOIS.

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