The Rise of Static Site Generators (Gatsby and Jekyll)

The web development pendulum is swinging back toward simplicity. Static site generators (SSGs) are experiencing a renaissance, powered by the JAMstack architecture. Let’s explore why developers are choosing Gatsby, Jekyll, and their cousins.

What is JAMstack?

JAMstack stands for JavaScript, APIs, and Markup:

• JavaScript: Dynamic functionality runs client-side
• APIs: Server-side operations via reusable APIs
• Markup: Pre-built HTML served from CDN

The key principle: pre-render as much as possible at build time, not runtime.

Why Static Sites Are Back

Performance

Pre-built HTML serves instantly. No database queries, no server-side rendering per request. CDN caching becomes trivial.

A static site on Netlify or Vercel often achieves sub-100ms TTFB globally.

Security

No server = dramatically reduced attack surface. No SQL injection, no server vulnerabilities, no patches to apply.

Scalability

Serving static files scales infinitely. Traffic spikes? CDN handles it. You’re never “down for maintenance.”

Developer Experience

Modern SSGs have great workflows:

• Local development with hot reload
• Git-based content management
• Automatic deployment on push
• Preview deployments for branches

Jekyll: The Original

Jekyll started the SSG wave. Built in Ruby, it powers GitHub Pages.

Quickstart

gem install bundler jekyll
jekyll new my-site
cd my-site
bundle exec jekyll serve

Structure

my-site/
├── _config.yml      # Configuration
├── _posts/          # Blog posts (Markdown)
├── _layouts/        # Templates
├── _includes/       # Reusable components
├── _data/           # YAML/JSON data files
└── assets/          # Static files

Writing Content

---
layout: post
title: "My First Post"
date: 2018-05-27
categories: blog
---

This is my first blog post. Jekyll uses **Markdown** for content.

Strengths

• Mature ecosystem
• GitHub Pages integration (free hosting)
• Extensive plugin library
• Great documentation

Weaknesses

• Ruby dependency
• Build times increase with large sites
• Limited dynamic capabilities

Gatsby: React-Powered Static

Gatsby brings React to static sites, with a sophisticated data layer.

Quickstart

npm install -g gatsby-cli
gatsby new my-site
cd my-site
gatsby develop

The GraphQL Data Layer

Gatsby’s killer feature: unified data access via GraphQL.

// Query data at build time
export const query = graphql`
  query {
    allMarkdownRemark {
      edges {
        node {
          frontmatter {
            title
            date
          }
          excerpt
        }
      }
    }
  }
`

// Use in component
export default function BlogIndex({ data }) {
  return data.allMarkdownRemark.edges.map(({ node }) => (
    <article key={node.id}>
      <h2>{node.frontmatter.title}</h2>
      <p>{node.excerpt}</p>
    </article>
  ))
}

Data Sources

Pull content from anywhere:

• Markdown files
• CMS (Contentful, Sanity, WordPress)
• APIs
• Databases
• Anything with a source plugin

Image Optimization

import { GatsbyImage, getImage } from "gatsby-plugin-image"

const image = getImage(data.file)
return <GatsbyImage image={image} alt="Description" />

Gatsby automatically generates responsive images, lazy loading, blur-up placeholders.

Strengths

• React component model
• Powerful data layer
• Amazing plugin ecosystem
• Progressive web app features built-in
• Image optimization

Weaknesses

• Build times for large sites
• Complex for simple use cases
• GraphQL learning curve
• Heavy JavaScript bundle

Other Notable SSGs

Hugo (Go)

Blazingly fast builds. Complex site? Hugo builds it in seconds where others take minutes.

hugo new site my-site
hugo serve

Eleventy (11ty)

Simple, flexible, zero-config. Uses multiple template languages.

npx @11ty/eleventy --serve

Next.js (Static Export)

React framework with SSG, SSR, and hybrid options.

next build && next export

Choosing the Right SSG

Choose Jekyll if: GitHub Pages hosting, simple blog, Ruby background

Choose Gatsby if: React site, need GraphQL data layer, want PWA features

Choose Hugo if: Large site, need fast builds, content-focused

Choose 11ty if: Simple requirements, want flexibility, minimal tooling

The Headless CMS Connection

SSGs pair beautifully with headless CMSs:

• Contentful: Enterprise-grade, GraphQL API
• Sanity: Real-time collaboration, custom schemas
• Strapi: Open source, self-hosted
• Netlify CMS: Git-based, works with any SSG

Content editors get a friendly interface. Developers get clean APIs. Everyone wins.

Deployment

Modern SSG deployment is magical:

1. Push to Git
2. CI builds the site
3. Deploy to CDN
4. Site is live globally

Platforms:

• Netlify: The gold standard for JAMstack
• Vercel: Great for Next.js, excellent DX
• GitHub Pages: Free, Jekyll-native
• Cloudflare Pages: Fast global CDN
• AWS Amplify: For AWS-centric teams

When NOT to Use SSGs

Be honest about fit:

• Highly dynamic content: Real-time data, user-specific pages
• Frequent updates: If you’re publishing every few minutes
• User-generated content: Comments, forums need dynamic backends
• Complex authentication: SSGs struggle with per-user rendering

You can add dynamic features via JavaScript and APIs, but at some point you’re rebuilding a server.

Final Thoughts

Static site generators represent a maturation of web development. We’re questioning the assumption that every page needs to be computed at request time.

For blogs, documentation, marketing sites, and portfolios, SSGs offer better performance, security, and developer experience than traditional approaches.

The JAMstack isn’t replacing server-side applications. It’s right-sizing the architecture for content-focused sites.

Serve files, not applications.