Yes, there are limits to the size of a DNS server. The number of DNS records that can be stored on a server is limited by the server’s memory and storage capacity. Additionally, the server’s processing power and network bandwidth can also limit its ability to handle large volumes of DNS requests. Scalability is important for larger organizations or companies that receive a high volume of DNS requests. To accommodate more records, servers can be clustered or scaled horizontally to increase processing power and storage capacity.