Understanding the Relationship Between IP, Domain, Web Services, and Why Static IP Matters

When hosting a website, managing a company server, or accessing a home network remotely, terms like domain , IP address , DNS , and static IP often come up. These elements form the backbone of the internet and web service infrastructure. In particular, understanding how domains map to IP addresses and why static IPs are essential helps ensure service stability and accessibility. This post breaks down the relationship between domains and IPs, the fundamentals of web service operation, the importance of static IPs, and how DNS resolves domain names to IP addresses.     1. The Relationship Between IP Addresses and Domain Names Every device on the internet has a unique IP address . However, since IPs are numeric, they are difficult to remember. Domains are human-friendly aliases for IP addresses. Example: 123.45.67.89 → www.example.com A domain is a readable label that points to a numeric IP address. Accessing a website ultimately requires its IP, ...