GitHub Pages is a free hosting service built into GitHub that turns the contents of a repository—HTML, CSS, JavaScript, or Jekyll-generated files—into a publicly accessible website. You don't need a separate server: GitHub serves the files directly from your repo.
What Is GitHub Pages Exactly?
GitHub Pages is a GitHub platform feature that lets you publish static websites at no extra cost. It's available on both free and paid accounts, with minor differences in visibility (public repositories or private organizations).
The most common use cases are:
- Personal portfolios for developers or designers.
- Technical documentation for open-source projects.
- Blogs generated with Jekyll, Hugo, or any static site generator.
- Landing pages or campaign microsites.
- Frontend project demos (compiled React, Vue, Angular builds).
What you cannot do with GitHub Pages is run server-side code: no PHP, no Node.js runtime, no Python, no databases, and no dynamic user sessions. It is pure static hosting.
How GitHub Pages Works as Hosting
The publishing process has three main steps:
- Source repository: you create or use a repository on GitHub. It can be public (free) or private (requires a Team plan or higher for GitHub Pages).
- Publication source configuration: under Settings → Pages in the repository you specify which branch and folder to publish from (usually
mainor thegh-pagesbranch, from the root or/docs). - Build and deploy: GitHub Actions runs the build process (if you use Jekyll or another generator) and deploys the resulting files. In 1–3 minutes the site is live.
The default URL follows the pattern https://yourusername.github.io/repo-name. If the repository is named exactly yourusername.github.io, the site lives at the root: https://yourusername.github.io. You can also configure a custom domain for free.
Custom Domain and HTTPS
GitHub Pages lets you point your own domain (www.yourdomain.com or an apex domain) by editing DNS records and adding a CNAME file to the repository. GitHub automatically issues and renews a TLS certificate via Let's Encrypt, so HTTPS costs nothing extra.
Technical Limits You Need to Know
GitHub Pages is not general-purpose hosting. Before choosing it for a project, review these limits published by GitHub:
| Limit | Value |
|---|---|
| Maximum published repository size | 1 GB recommended (no hard official limit, but sites >1 GB may be blocked) |
| Monthly bandwidth | 100 GB (soft limit) |
| Builds per hour | 10 builds/hour |
| Files per repository | No official limit, but very large repos impact build performance |
| Server-side code | Not allowed (static only) |
| Commercial use | Allowed, but no guaranteed uptime SLA |
The 100 GB monthly bandwidth cap is the one that catches growing teams off guard. If your static site starts attracting high traffic, you can exceed that limit and GitHub may throttle or suspend the service without prior notice.
When to Use GitHub Pages—and When Not To
GitHub Pages is a good choice if…
- Your site is fully static: HTML/CSS/JS with no backend.
- Expected traffic is low to moderate (under 50 GB/month).
- It's a personal project, documentation site, or technical demo.
- You already use GitHub for version control and want automatic deploys without managing servers.
GitHub Pages is not suitable if…
- You need PHP, Python, Node.js, or any other server-side language.
- Your site requires a database, user authentication, or dynamic content.
- It's a business with a guaranteed uptime SLA requirement.
- You have an online store, payment-processing forms, or backend logic.
- You expect more than 100 GB of monthly traffic.
For projects that exceed these limitations, the common next step is migrating to shared hosting, a VPS, or an application-hosting service. If you need guidance on choosing the right platform for your project type, the team at elenlace.com can help you evaluate your options.
Alternatives to GitHub Pages for Static Sites
If GitHub Pages falls short, these platforms offer static hosting with more generous limits or additional features:
- Netlify: 100 GB/month on the free plan, serverless functions, built-in forms, pull-request previews.
- Vercel: focused on Next.js and modern frameworks; serverless functions, excellent developer experience.
- Cloudflare Pages: no bandwidth limit on the free plan, Cloudflare's global CDN.
- Firebase Hosting: free plan with 10 GB storage and 360 MB/day transfer; integrated with the Google ecosystem.
Also check our hosting comparisons section where we analyze each option in detail.
Key Takeaways
- GitHub Pages is a free static hosting service ideal for portfolios, documentation, and technical demos.
- It does not support server-side code: PHP, Python, Node.js, and databases are all out.
- The 100 GB monthly bandwidth cap is enough for personal projects but falls short for high-traffic sites.
- It supports custom domains and free HTTPS via Let's Encrypt.
- For projects with a backend or a guaranteed availability SLA, the alternative is dedicated hosting or a service like Netlify or Cloudflare Pages.
Has your project outgrown what GitHub Pages can offer? The team at elenlace.com can help you migrate your site to a hosting platform with the support, performance, and scalability you need to grow without interruption.
FAQ
Is GitHub Pages completely free?
Yes, for public repositories there is no additional cost. To publish a site from a private repository you need a GitHub Team plan or higher. Custom domains and HTTPS are also free.
Can I use WordPress on GitHub Pages?
Not natively. WordPress requires PHP and a MySQL/MariaDB database, which GitHub Pages does not provide. However, projects like Simply Static can export a WordPress site to plain HTML and then publish it on GitHub Pages—though you lose all dynamic functionality.
Does GitHub Pages have an uptime guarantee?
There is no published SLA for GitHub Pages availability. GitHub recommends against using it for sites where availability is business-critical. For enterprise use with an SLA, managed hosting or a cloud provider with a formal service-level agreement is the right choice.
Can I use GitHub Pages with a site generator like Hugo or Astro?
Yes. You can configure a GitHub Actions workflow that builds your site with Hugo, Astro, Jekyll, Eleventy, or another generator, then automatically deploys the output to GitHub Pages on every push to the main branch.
Useful resources
Other providers and guides worth comparing:
