educative.io

How does DNS Work?

Can a dns return multiple ip address for a domain name to the browser? if so how does browser figure out which ip address to call?

Hi Yashasvi,

DNS can return multiple IP addresses for a single domain name, known as DNS round-robin or load balancing. When a browser requests the IP address, it receives a list of IPs and selects one to initiate the connection (although factors like response time or availability may influence the selection), often based on a round-robin algorithm. If the selected server is unavailable, the browser may try another IP until a connection is established.

Thanks.