Too Long; Didn't Read
Without the Domain Name System (DNS), it would be a challenge for most people to recall IP addresses instead of their more memorable semantic-based counterparts. Imagine if you had to type in “172[.]217[.]5[.]78” instead of “google[.]com” every time you wanted to access the search engine, and then do the same for every website you wish to visit. If this were the case, only a fraction of users would be able to take advantage of the Web.