How to Validate a URL in C#

If you’re looking for a simple way to consistently validate URLs that you interact with, you’ve come to the right place. We have an API solution that will check the syntax, domain, and endpoint of a URL to ensure its safe. With phishing scams that use invalid domain names on the rise, performing these scans on a regular basis can provide a secure experience for both your organization and customer-base.

In order to begin the validation process, we will first need to install the .NET Framework SDK (.NET Core available as well):

Install-Package Cloudmersive.APIClient.NET.Validate -Version 3.0.6

With the package installed, our next step is to call the function using the following code:

using System;
using System.Diagnostics;
using Cloudmersive.APIClient.NET.Validate.Api;
using Cloudmersive.APIClient.NET.Validate.Client;
using Cloudmersive.APIClient.NET.Validate.Model;
namespace Example
{
    public class DomainUrlFullExample
    {
        public void main()
        {
            // Configure API key authorization: Apikey
            Configuration.Default.AddApiKey("Apikey", "YOUR_API_KEY");
var apiInstance = new DomainApi();
            var request = new ValidateUrlRequestFull(); // ValidateUrlRequestFull | Input URL request
try
            {
                // Validate a URL fully
                ValidateUrlResponseFull result = apiInstance.DomainUrlFull(request);
                Debug.WriteLine(result);
            }
            catch (Exception e)
            {
                Debug.Print("Exception when calling DomainApi.DomainUrlFull: " + e.Message );
            }
        }
    }
}

As previously mentioned, you will receive a response indicating the validity of the URL syntax and domain, and whether the endpoint passed virus checks. Additionally, the function will produce a fully formed URL. If you have any questions on this or any of our other APIs, you can contact our experienced Sales team, and they will be happy to assist.