Check to see if proxy settings are working

Hi Szabi,   Is there any way to validate if the proxies we set in the proxy field are working. I'm a bit concerned about the sites I pull from seeing too many data requests over time and following the ip trail to my site. Is this actually a valid concern? I have 3 private residential proxies set in the plugin field along with the user/password data. Is there any way to validate that all scraping is being done through those proxies? Thanks very much!