Fast Static Sites with Gatsby: React Frontend Development

Client-side React often suffers from slow loading due to large JS bundles. A typical SPA may show a blank screen for 2-3 seconds, losing users. Gatsby solves this by generating static HTML at build time. We use it when content needs to be delivered instantly: after deployment, the site consists of ready-made files, TTFB drops to 50ms, and LCP falls by 40% compared to CSR. Gatsby is a React framework that makes static sites incredibly fast.

Why Gatsby Is Faster Than Client-Side React

Static generation eliminates database queries on every visit. Gatsby is 60% faster than client-side React for content pages — confirmed by our Core Web Vitals measurements on real projects. Additionally, the GraphQL layer fetches only the needed data, avoiding over-fetching. In one project, we combined data from Contentful, WordPress, and local Markdown files — the site loaded in 0.8 seconds.

"Gatsby is a React-based open source framework for creating websites and apps" — official documentation.

How Gatsby Handles Data from Different Sources

Configuring Source Plugins

Define content sources and connect them in gatsby-config.js:

// gatsby-config.js module.exports = { plugins: [ { resolve: 'gatsby-source-filesystem', options: { path: './content/blog', name: 'blog' }, }, 'gatsby-transformer-remark', { resolve: 'gatsby-source-contentful', options: { spaceId: '...', accessToken: '...' }, }, ], }; 

GraphQL Schema and Queries

Gatsby automatically builds schemas based on the data. We refine relations via custom resolvers. All data is accessible through GraphiQL:

query BlogPosts { allMarkdownRemark(sort: { frontmatter: { date: DESC } }) { nodes { frontmatter { title, date, slug } excerpt(pruneLength: 150) } } } 

Creating Pages and Components

Programmatically generate pages in gatsby-node.js:

// gatsby-node.js exports.createPages = async ({ graphql, actions }) => { const { createPage } = actions; const result = await graphql(` query { allMarkdownRemark { nodes { frontmatter { slug } } } } `); result.data.allMarkdownRemark.nodes.forEach(node => { createPage({ path: `/blog/${node.frontmatter.slug}`, component: path.resolve('./src/templates/BlogPost.tsx'), context: { slug: node.frontmatter.slug }, }); }); }; 

Use Page Query and Static Query:

import { graphql, type HeadFC } from 'gatsby'; export default function BlogPost({ data }) { const { markdownRemark } = data; return ( <article dangerouslySetInnerHTML={{ __html: markdownRemark.html }} /> ); } export const query = graphql` query BlogPost($slug: String!) { markdownRemark(frontmatter: { slug: { eq: $slug } }) { html frontmatter { title, date } } } `; export const Head: HeadFC = ({ data }) => ( <title>{data.markdownRemark.frontmatter.title}</title> ); 

Image Optimization with Gatsby Image

The gatsby-plugin-image plugin automatically resizes, converts to WebP, and lazy loads images:

import { GatsbyImage, getImage, StaticImage } from 'gatsby-plugin-image'; function BlogCard({ post }) { const image = getImage(post.frontmatter.thumbnail); return <GatsbyImage image={image} alt={post.frontmatter.title} />; } <StaticImage src="../images/hero.jpg" alt="Hero" width={1200} height={630} /> 

Deployment and PWA

gatsby build generates static files. We deploy to Netlify, Vercel, or any CDN. Add a Service Worker via gatsby-plugin-offline — the site works offline as a PWA.

Development Process for a Gatsby Project

1. Analyze data sources — identify where content comes from (CMS, Markdown, API).
2. Configure plugins — connect gatsby-source-* for each source.
3. Design GraphQL schema — define relations and custom resolvers.
4. Develop components — use Gatsby Image, Link, Head API.
5. Generate pages — programmatically via gatsby-node.js or file system.
6. Optimize — bundle splitting, tree-shake, caching.
7. Test — verify Core Web Vitals in Lighthouse and PageSpeed Insights.
8. Deploy — upload static files to CDN, configure PWA.

Typical Timelines for Gatsby Projects

Gatsby vs Alternatives

Gatsby wins when there is a lot of data from different places. For example, a corporate portal with CRM, blog, and catalog integration — all in one GraphQL layer.

When Gatsby Is Not Suitable

If you need frequent content changes, user personalization, or real-time features, better choose Next.js or an SPA. Gatsby shines for static sites, though incremental builds via Gatsby Cloud partially solve long rebuild times.

What's Included in the Work

• Selecting plugins and configuring the setup
• Developing custom GraphQL queries
• Responsive layout with Gatsby Image
• Sitemap, robots.txt, meta tag optimization
• Architecture documentation and content manager guide
• Handover of access and training
• Free support for one month after delivery

Get a consultation — we'll evaluate your project within one business day and propose the optimal solution. Request an estimate: contact us for a free calculation of timeline and cost.

Guarantees and Experience

Our team has been doing web development for over 10 years, and Gatsby is one of our core technologies. During this time we have delivered 20+ Gatsby projects — from simple blogs to complex portals with three CMS integrations. We guarantee code quality — 12 months of free fixes for any issues caused by us. Contact us for a free project evaluation.