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- A/B Testing20
- Above the Fold17
- Accessibility (a11y)53
- Accessibility Audit17
- Accessibility Overlay18
- Accessible Forms11
- Accordion11
- Account-Based Marketing (ABM)10
- ADA Compliance6
- Affiliate Marketing7
- Agentic Search10
- Agentic Workflow8
- Agile Development7
- AI Agent / Autonomous Agent14
- AI Citations17
- AI Crawler (GPTBot, ClaudeBot, PerplexityBot)13
- AI Gateway14
- AI Mode13
- AI Observability13
- AI Overview28
- AI Visibility Pyramid19
- AI-Assisted Development (Cursor / Copilot)6
- Algorithm21
- Algorithm Update7
- Alt Text6
- Alt Text17
- Anchor Text7
- Angular21
- Animation / Motion Design6
- Answer Engine10
- Answer Engine Optimization34
- API117
- App Bundle / AAB4
- App Store Optimization (ASO)8
- ARIA25
- Artificial Intelligence14
- Astro20
- Atomic Answer13
- Atomic Design (Atoms / Molecules / Organisms)7
- Attribution Modeling (First-Click, Last-Click, Multi-Touch, Data-Driven)9
- Authentication vs Authorization17
- Authentication vs Authorization7
- AVIF11
- AWS (EC2 / S3 / CloudFront / Lambda)26
- axe-core17
- CAC (Customer Acquisition Cost)14
- Caching (Redis)45
- Call to Action (CTA)24
- Canonical Tag8
- Capacitor22
- CAPTCHA / reCAPTCHA / Turnstile10
- Captioning / Transcripts5
- Case Study14
- CCPA / CPRA4
- ccTLD (Country Code TLD)6
- ChatGPT Search21
- Checkout Abandonment6
- Chunking14
- CI/CD (GitHub Actions)26
- Citation Gap13
- Citation Rate16
- Click-Through Rate (CTR)23
- Client-Side Rendering (CSR)15
- Cloud Hosting16
- Cloudflare33
- CLS (Cumulative Layout Shift)13
- CMS31
- Code Splitting13
- Cognitive Load14
- Cold Start10
- Color Contrast Ratio7
- Color Palette10
- Component Library16
- Composable Commerce18
- Content Calendar8
- Content Delivery Network (CDN)48
- Content Marketing15
- Content Strategy14
- Contentful26
- Context Window12
- Conversational AI11
- Conversational Search12
- Conversion Funnel (ToFu/MoFu/BoFu)16
- Conversion Rate33
- Conversion Rate Optimization21
- Cookie Attributes (Secure/HttpOnly/SameSite)11
- Cookie Consent15
- Cookie Consent Banner8
- Cookie Deprecation9
- Core Web Vitals22
- CORS17
- CORS8
- CPC / CPM / CPA8
- Crawl Budget10
- Crawling20
- Critical Rendering Path12
- CRM26
- Cross-Platform Development10
- CrUX Report15
- CSP15
- CSP10
- CSRF12
- CSS81
- CSS Flexbox5
- CSS Grid6
- Custom Post Types17
- Customer Data Platform (CDP)10
- Customer Journey10
- Dark Patterns10
- Dashboard32
- Data Layer14
- Database63
- DDoS Protection10
- Deep Linking (Universal Links / App Links)11
- Demand Generation15
- Deployment Pipeline10
- Design Handoff9
- Design Sprint7
- Design System22
- Design System20
- Design Tokens15
- Digital Marketing22
- Digital Sustainability / Green Web18
- DNS20
- DNS Management (A Record / CNAME)13
- Docker15
- Dofollow vs Nofollow11
- DOM36
- Domain Name17
- Domain Registrar6
- Duplicate Content12
- E-E-A-T13
- E-E-A-T in AI Search14
- Edge AI5
- Edge Caching11
- Edge Computing15
- Edge Functions19
- Email Automation / Drip Campaign9
- Email Marketing18
- Embeddings12
- Emotional Design9
- Empty State / Error State / Loading State8
- Engagement Rate12
- Entity30
- Entity Strengthening15
- Environment Variables18
- European Accessibility Act (EAA)6
- Event Tracking11
- Exit-Intent Popup8
- Express.js12
- External Linking5
- Extractability15
- GDPR14
- Generative AI (GenAI)11
- Generative Engine14
- Generative Engine Optimization36
- Git / GitHub3
- Go-to-Market Strategy (GTM)15
- Google Analytics 4 (GA4)32
- Google Search Console18
- Google Tag Manager17
- Googlebot14
- GPT18
- GraphQL20
- Grid System6
- Grounding (AI)82
- Group Leak10
- Growth Loop8
- Growth Marketing10
- Guardrails11
- Gutenberg Editor17
- Gzip / Brotli Compression14
- Landing Page25
- Landmark Elements8
- Large Language Model25
- Lazy Loading19
- LCP (Largest Contentful Paint)22
- Lead Generation18
- Lead Magnet7
- Lead Scoring / Lead Nurturing9
- Lighthouse18
- Link Building11
- Link Equity10
- LLM (Large Language Model)27
- LLMs.txt13
- Local SEO12
- Logo / Wordmark6
- Long-Tail Keyword6
- Looker Studio7
- LTV (Lifetime Value)10
- MACH Architecture19
- Machine Learning (ML)17
- Managed Hosting15
- Markdown7
- Marketing Automation (HubSpot / Marketo)14
- Marketing Mix Modeling (MMM)6
- Martech Stack15
- Media Queries12
- Meta Description8
- MFA / 2FA5
- Micro-Conversion vs Macro-Conversion6
- Micro-Frontends9
- Microinteractions5
- Microservices18
- Mobile App Analytics (Firebase)17
- Mobile Optimization20
- Mobile Performance22
- Mobile UI/UX (Thumb-Friendly Design)6
- Mobile-First Design8
- Mobile-First Indexing12
- Mobile-First Indexing18
- Mockup11
- Modal / Lightbox10
- MQL / SQL / PQL9
- Multi-Agent System9
- Page Builder20
- PageRank8
- PageSpeed Insights10
- Pageview9
- Partial Prerendering (PPR)11
- Passkeys / WebAuthn8
- Payload CMS25
- People Also Ask7
- Performance Budget8
- Perplexity25
- Personalization26
- Persuasive Design7
- PHP19
- Pillar Page / Topic Cluster9
- Plugins36
- PPC (Google Ads)28
- Preferred Sources17
- Preload / Prefetch / Preconnect11
- Privacy Policy9
- Product-Led Growth (PLG)8
- Progressive Disclosure12
- Progressive Enhancement21
- Progressive Web App (PWA)20
- Progressive Web App (PWA)14
- Prompt Chaining8
- Prompt Engineering14
- Prototype11
- Push Notifications15
- Python20
- RAG (Retrieval-Augmented Generation)23
- Rank Math13
- React51
- React Native15
- React Server Components13
- Readability (Flesch Reading Ease)17
- Real User Monitoring (RUM)8
- Reduced Motion13
- Remarketing / Retargeting9
- Render-Blocking Resource12
- Rendering49
- Responsible AI / AI Bias6
- Responsive Design18
- Responsive Images (srcset/sizes)6
- REST47
- Retrieval-Augmented Generation (RAG)26
- Roadmap5
- ROAS12
- Robots Meta Tag8
- Robots.txt19
- SaaS / IaaS / PaaS9
- SaaS Marketing14
- Sanity25
- Schema Markup17
- Screen Reader23
- Scroll Depth14
- Scrum4
- Search Intent8
- Section 5084
- Security Headers16
- Semantic HTML14
- Semantic HTML18
- Semantic Search11
- Semantic Versioning (SemVer)5
- SEO87
- SEO Audit15
- SERP15
- SERP Features12
- Server Actions10
- Server-Side Rendering (SSR)31
- Server-Side Tracking17
- Serverless Functions17
- Service Workers18
- Session58
- Session Replay13
- Shadow DOM13
- Shared Hosting8
- Shopify22
- Single Page Application (SPA)32
- Single Sign-On (SSO)14
- Skyscraper Technique6
- SLA11
- Social Proof13
- Source Diversity11
- SPF / DKIM / DMARC5
- Sprint5
- SQL16
- SQL Injection12
- SRI12
- SSH8
- SSL Certificate10
- SSO10
- Staging vs Production15
- Staging vs Production9
- State Management17
- Static Site Generation (SSG)25
- Statistical Significance5
- Storybook14
- Strapi28
- Streaming SSR22
- Structured Data38
- Subdomain13
- Svelte16
- SvelteKit29
- SVG20
- Swift (iOS)30
- Tailwind CSS11
- Taxonomies10
- Technical Debt10
- Technical SEO29
- Template Hierarchy12
- TestFlight6
- Testimonial8
- Themes24
- Title Tag6
- TLD (Top-Level Domain)9
- TLS/SSL8
- Touch Target Size4
- Traffic Source (Organic/Direct/Referral/Paid/Social)15
- Trust Signals15
- TTFB (Time to First Byte)12
- TypeScript26
- Typography (Serif / Sans-Serif / Variable Font)28
The A-Z of the web
Every term spelled out and cross-referenced, the way a good reference book should be.
Every term links to its full entry at /glossary/. The complete text of every entry is at /glossary/llms-full.txt.