Hello, I have a list of domains about my niche. I am trying to find which of these Domains expired and free to register. But there are over 3k domains in this list. It is quite hard to check 50 by 50 on bulk domain register search tool from namecheap. Is there is a way to scrape free to register domains from my list with footprints? Something like "opps page can not find" ??? Thanks.