As we navigate through the wild world of Web3, we are continuously discovering new uses for even the most popular services. One example comes from the Ethereum Name Service (ENS). By now you have probably heard of ENS domains, but have you heard of ENS subdomains?
An ENS subdomain is a third-level (3LD) domain that precedes both the second-level domain (2LD) and the top-level domain (TLD). ENS uses the same syntax as DNS (a dot separated right-to-left). For example, alex.137pm.eth is 3LD.2LD.TLD. Currently, if you own a 2LD you can create as many subdomains as you want.
In this article, you will learn exactly what an ENS subdomain is, some current issues regarding it, as well as its potential use cases.
The information in this article was gathered from this tweet, found below.