GitHub for website owners: what it is and why your site should live there

GitHub is an online home for your website's code that remembers every change ever made. For a DIY site it does three jobs at once: it is your backup, your undo button and the trigger that tells your host to publish updates. If you are building a site with Claude, put the code on GitHub from day one. This guide explains the handful of ideas you need, without the jargon.

Git and GitHub, explained simply

Git is software that tracks changes to a folder of files. Every time you save a meaningful step, Git records a snapshot called a commit, with a note about what changed. You can look back at any snapshot or return to it.

GitHub is a website that stores those Git folders (called repositories, or repos) online. It adds tools for reviewing changes, working with other people and connecting to other services. Alternatives exist, such as GitLab and Bitbucket, but GitHub is the most widely supported by hosts and tools.

The idea underneath both is version control: a full, reliable history of your site.

Why a website owner should care

• It is a backup you did not have to think about. Your laptop dies, the code is still on GitHub.
• Every mistake is reversible. If a change breaks the site, you go back to the last good commit.
• Hosting runs off it. Netlify, Vercel and AWS Amplify watch your repository. Push a change and the live site updates a minute or two later. Covered in our hosting guide for DIY sites.
• You are never locked in. The code is yours, in a standard format. Any developer can pick it up, and you can move hosts without rebuilding.
• Previews before publishing. Work on a branch, and most hosts give you a private preview link to check before it goes live.

Compare that with editing files on a server by hand, or with AI builders that keep your site inside their platform. Ownership and history are the main reasons we put every coded client site in Git, as we explained in React and Next.js for business websites.

The six words you need

The main branch is usually what your host publishes. Everything else is work in progress.

A simple workflow for a one-person site

1. Create the repo on GitHub (private) or let Claude Code create it for you.
2. Make changes on a branch for anything bigger than a typo, for example new-services-page.
3. Commit often with clear messages: "Add plumbing services page", not "updates".
4. Push the branch. Your host builds a preview link. Check it on your phone.
5. Merge into main with a pull request. The host deploys the live site.
6. If something breaks, revert the merge or roll back the deploy in your host's dashboard.

You can do all of this without typing Git commands. Claude Code works directly with Git: it can stage changes, write commit messages, create branches and open pull requests. GitHub Desktop and VS Code offer the same with buttons. Learning the ideas matters more than memorizing commands.

Working with Claude and GitHub together

A pattern that works well for DIY builds:

• Keep a CLAUDE.md file in the repo with your brand rules, page list and do-not-do list. Claude Code reads it at the start of every session, so your instructions travel with the code.
• Ask Claude to commit after each finished step. Small commits make it easy to see what changed and undo one thing without losing everything else.
• Ask Claude to explain each commit before you push it. You learn as you go, and you catch changes you did not ask for.
• Review the diff (the before and after view) on GitHub before merging, even briefly.

Keeping your repository safe

GitHub becomes a key to your business, so treat it like your bank login.

• Turn on two-factor authentication. Use an authenticator app or a passkey, not SMS where you can avoid it.
• Never commit secrets. API keys, database passwords and service tokens go in your host's environment variables, not in code. A .env file must be listed in .gitignore so it is never uploaded. If a secret is ever committed, treat it as leaked: rotate the key immediately, because removing the file later does not remove it from history.
• Keep the repo private unless you mean to share it.
• Turn on Dependabot alerts so GitHub warns you when a package your site uses has a known vulnerability. Outdated dependencies are a common route for a supply chain attack.
• Give access sparingly. Add a developer to the specific repo, not your whole account, and remove them when the work ends. That is least privilege in practice.

More on all of this in how to secure a website you built with AI.

GitHub vs editing in an AI builder

Builders are fine for quick projects. Our post on vibe coding a business website covers where they fit.

The short version

GitHub stores your site's code with a complete history, connects to your host so updates publish automatically, and keeps you independent of any one tool. Make the repo private, turn on two-factor, keep secrets out of the code and commit in small steps. Back to the main guide: how to build your own website with Claude. Want a studio to set this up properly? Get in touch.