How web hosting works

Web hosting is the service that stores your website’s files on powerful computers called servers and makes them available to visitors around the world 24/7. When someone types your domain name, the browser asks DNS for the server’s IP address, then requests your files. The server sends them back in milliseconds so the page can load.

Hosting companies keep servers in secure data centers with redundant power, cooling and network connections. You rent space and resources (CPU, RAM, storage, bandwidth) according to the plan you choose. Shared hosting is the most affordable, VPS gives you isolated resources, dedicated gives you a whole server, and cloud hosting spreads your site across multiple servers for better scalability and uptime.

The office-space analogy

Choosing hosting is like choosing office space: shared is a coworking desk, VPS is a private office, dedicated is your own building, and cloud is a flexible network of buildings you can expand into instantly.

Why US buyers should care about 99.9% uptime

Choose a host with a real 99.9%+ uptime SLA. Look for providers that publicly publish monthly uptime reports and offer service credits if they fall short. Marketing claims of “99.99%” mean nothing without transparent monitoring data. Use your own uptime robot. Keep a recent full backup and a temporary landing page (or a secondary host) so you can point the domain elsewhere if the main server stays down for more than a few hours.

Next: types of hosting and how to choose a provider.