Glossary · L

15 terms starting with L.

Growth

Landing Page

A page built for one campaign, optimised to drive one specific action.

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AI

LangChain

Open-source framework for building LLM applications — chains, agents, memory, retrieval, and integrations with dozens of vector stores and providers.

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Backend

Laravel

A batteries-included PHP framework — the default for custom PHP apps in 2026.

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Performance

Latency

The delay between request and response, in milliseconds.

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Performance

LCP

Largest Contentful Paint — time until the largest element becomes visible.

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Growth

Lead Magnet

A downloadable resource offered in exchange for an email address.

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Industry

Legal Tech

Software built specifically for the legal industry.

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Frontend

Lenis

A lightweight JavaScript library for smooth momentum-based scrolling.

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Integration

LinkedIn API

LinkedIn's programmatic interface for auth, sharing, and B2B contact data.

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AI

LLM

Large language model — a neural network trained on massive text corpora that generates and understands human language. Examples: GPT-5, Claude Sonnet, Gemini, Llama.

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SEO

llms.txt

A proposed file at the root of a website (like robots.txt) that gives AI crawlers a machine-readable summary of the site and its structure.

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Infrastructure

Load Balancer

A device distributing incoming traffic across multiple servers.

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Web

Localization

Adapting a site to a specific language, culture, and regulatory environment.

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Ops

Log Analysis

Reading server / application logs to find bugs, security issues, and performance problems.

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SEO

Long-tail Keyword

A specific low-volume search query with lower competition and higher intent.

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