Glossary
Web glossary & definitions
SEO, GEO, Core Web Vitals, schema markup and other terms — explained simply.
web-development
CMS (Content Management System)
A CMS (Content Management System) is software that lets you create, edit and publish website content without writing code. Popular CMS platf…
Hosting
Hosting is the service that stores your website on a server so it is reachable on the internet. Types include shared, VPS, dedicated, cloud …
JavaScript
JavaScript is the main programming language of the web browser, used to add interactivity to pages. It runs on both the client (browser) and…
API (Application Programming Interface)
An API (Application Programming Interface) is a contract that lets two programs exchange data and trigger each other's features. The most co…
WordPress
WordPress is the free open-source CMS that powers 43%+ of all websites in 2026. It dominates the blog, corporate site, and (with WooCommerce…
Headless CMS
A headless CMS is a content management system that exposes content via a REST/GraphQL API, while the front-end is built separately with a fr…
JAMstack
JAMstack — JavaScript + APIs + Markup — an architectural pattern where the front-end is pre-built static (Next.js/Astro), dynamic data comes…
Sanity CMS
Sanity is a cloud-hosted headless CMS — JavaScript schema, GROQ query language, real-time collaboration, generous free tier (3 users + 1M AP…
Payload CMS
Payload — TypeScript-native open-source headless CMS, self-hosted (free) or cloud ($35+/mo). MongoDB or Postgres, Express middleware, code-f…
React
React is a JavaScript library for building UIs — released by Facebook in 2013. Today the largest front-end library — 40%+ market share, the …
Next.js
Next.js is a React-based full-stack framework covering server-side rendering, static generation, file-based routing, edge deployment, and Se…
TypeScript
TypeScript is a statically-typed superset of JavaScript — released by Microsoft in 2012. Compile-time type checking + IDE autocomplete. 78% …
MDX
MDX (Markdown + JSX) is a format that combines Markdown with React components — Markdown simplicity for content writers + React power for de…
Vercel
Vercel is a cloud platform from the Next.js authors — automated CI/CD, edge deployment to 240+ POPs, preview URL per PR, $0 free tier (hobby…
performance
Core Web Vitals
Core Web Vitals are three Google metrics that measure site quality: LCP (loading), INP (interactivity) and CLS (visual stability). They have…
Google Lighthouse
Google Lighthouse is a free automated audit tool — measures website Performance, Accessibility, Best Practices, SEO, and PWA score on a 0-10…
Edge Computing
Edge Computing is a model where compute (rendering, processing) happens on a POP (Point of Presence) server geographically close to the user…
Cloudflare
Cloudflare is a CDN + DDoS protection + DNS + edge compute platform — 20% of internet sites route through its network. Free tier is producti…
security
seo
SEO (Search Engine Optimization)
SEO (Search Engine Optimization) is optimising a website to rank higher in Google and other search engines. It covers three pillars: technic…
GEO (Generative Engine Optimization)
GEO (Generative Engine Optimization) is optimising content for AI search systems (ChatGPT, Perplexity, Google AI Overview, Claude) so they c…
Schema Markup / JSON-LD
Schema Markup (JSON-LD) is a structured data format that helps search engines understand what is on a page. It powers rich results in Google…
E-E-A-T
E-E-A-T — Experience, Expertise, Authoritativeness, Trustworthiness — Google's ranking framework in Quality Rater Guidelines. AI engines als…
Ahrefs
Ahrefs is a SaaS SEO toolkit — keyword research, backlink analysis, site audit, rank tracking, content explorer. $99-$999/mo. 1M+ paying use…
Semrush
Semrush is a SaaS digital marketing toolkit — SEO + PPC + content + social + competitive intelligence. 87,000+ paying customers in 2026, $30…
design
ecommerce
Shopify
Shopify is a SaaS e-commerce platform — managed hosting + payments + theme + admin in one subscription ($39-$399/mo). 4.7M+ stores in 2026, …
WooCommerce
WooCommerce is a free WordPress plugin that turns a WordPress site into an e-commerce store. 4.4M+ active installs in 2026, 23% market share…
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