reverse DNS

Reverse DNS (Domain Name System) is a process that translates an IP address back into a domain name, the human-readable address associated with a website or server. While regular DNS helps you find a website by typing its name, reverse DNS helps identify the owner or the purpose of an IP address. This is useful for security, spam filtering, and troubleshooting, ensuring that the IP address belongs to a legitimate source. Essentially, reverse DNS provides a way to verify and understand who or what is associated with a specific numerical address on the internet.