Get a host's public IP

Get-PublicIP.ps1

function Get-PublicIP {
    param (
        [Parameter(HelpMessage='Return IPv6 info if available.')]
        [switch] $ipV6
    )

    if ($ipV6)
    {
        $ipifyURL = 'https://api64.ipify.org'
    }
    else
    {
        $ipifyURL = 'https://api.ipify.org'
    }
    

    try
    {
        $publicIP = (Invoke-WebRequest -Uri $ipifyURL).Content
    } 
    catch [WebException]
    {
        Write-Host 'There was a problem using the api to retrieve your client IP.'
    }

    $publicIP

    <#
    .SYNOPSIS
        Returns public IP for host.
    .DESCRIPTION
        Returns public IP for host using ipify.org.
    .EXAMPLE
        PS C:\> Get-PublicIP
        Gets current public IP.
    .EXAMPLE
        PS C:\> Get-PublicIP -ipV6
        Gets current public IPv6 IP if available.
    .INPUTS
        System.Boolean. If the IPv6 info should be returned.
    .OUTPUTS
        System.String. The public IP.
    .NOTES
        Written by Matthew Johnson (@mwjcomputing)
    .LINK
        https://mwjcomputing.com
    .LINK
        https://gist.github.com/mwjcomputing/ab4bd849d50061df70e3bc4cb010f4fc
    #>
}