# Learn how hosting works

> Plain explanations of domains, DNS, certificates, email, servers, storage and protection, for anyone new to hosting.

Source: https://www.coritan.com/docs/learn/

These pages explain the ideas behind hosting in plain words, for someone who has never met them. Each one says what the idea is, how it works at Coritan and which guides put it to use. When you already know what you want to build, the tutorials in [Get started](/docs/get-started/#start-from-a-goal) start from your goal, and [the glossary](/docs/platform/glossary/) defines single words.

## Websites and domains

- [Domains and DNS](/docs/learn/domains-and-dns/): what a domain is, and how a name leads to the server behind it
- [SSL certificates](/docs/learn/ssl-certificates/): how HTTPS protects visitors, and where certificates come from
- [Web proxies, origins and the WAF](/docs/learn/web-proxies/): what can stand between your visitors and your server

## Email

- [How email reaches an inbox](/docs/learn/how-email-works/): the records and checks that decide where mail goes and whether receivers trust it

## Servers and apps

- [Cloud servers](/docs/learn/cloud-servers/): what you rent when you rent a server
- [Container Apps, Cloud Compute and Apps compared](/docs/learn/choose-a-compute-product/): which one suits what you want to run
- [IP addresses, ports and reverse DNS](/docs/learn/ip-addresses-and-ports/): how a connection finds a machine, and a service on it
- [DDoS attacks and protection](/docs/learn/ddos-attacks/): what an attack is, and what filters it

## Storage and safety

- [Object storage compared with a disk](/docs/learn/object-storage/): buckets, objects and access keys
- [How backups and snapshots protect your data](/docs/learn/backups-and-snapshots/): which copies Coritan keeps, and where