public async Task <IPAddress[]> GetDomainIpAddressesAsync(string domain)
{
if (domain == null)
{
throw new ArgumentNullException(nameof(domain));
}
try {
return(await domainResolveCache.ThunkifyAsync(NormalizeDomain(domain), Dns.GetHostAddressesAsync));
} catch (SocketException)
{
return(new IPAddress[0]);
}
}