Result:

Array
(
    [url] => http://datc-app.xyz/
    [content_type] => 
    [http_code] => 0
    [header_size] => 0
    [request_size] => 0
    [filetime] => -1
    [ssl_verify_result] => 0
    [redirect_count] => 0
    [total_time] => 0.004208
    [namelookup_time] => 0
    [connect_time] => 0
    [pretransfer_time] => 0
    [size_upload] => 0
    [size_download] => 0
    [speed_download] => 0
    [speed_upload] => 0
    [download_content_length] => -1
    [upload_content_length] => -1
    [starttransfer_time] => 0
    [redirect_time] => 0
    [redirect_url] => 
    [primary_ip] => 
    [certinfo] => Array
        (
        )

    [primary_port] => 0
    [local_ip] => 
    [local_port] => 0
    [http_version] => 0
    [protocol] => 0
    [ssl_verifyresult] => 0
    [scheme] => 
    [error] => Could not resolve host: datc-app.xyz
)