I don’t know of a server that does exactly what you wrote, but I generally troubleshoot dns issues with a few dig commands. dig without any parameters will res

I don’t know of a server that does exactly what you wrote, but I generally troubleshoot dns issues with a few dig commands. dig without any parameters will resolve via your normal dns server and display the servers ip. With @(dns server ip here) you can query a different dns server to check what their answer is. With +trace you can go through the complete dns chain from the root servers on to check for issues in the chain. Sorry if this doesn’t help you or you knew this already.