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Web Encyclopedia

Understanding the web,
in plain English.

Landing Page, Link Building, Local SEO, Load Time — the L-words of web performance and visibility.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
01

Landing Page

A landing page is a standalone web page designed for a specific campaign or conversion goal. Unlike your homepage, which serves many purposes, a landing page is laser-focused: one message, one audience, one call to action. It is typically reached via a Google Ad, email campaign, or social media link.

Real-world example

A landing page is like a dedicated pop-up shop for a specific product. Instead of sending the customer to your full department store where they might wander off, you put them directly in front of the one item you want them to buy.

Why it matters for you

Landing pages consistently convert at higher rates than homepages because they eliminate distractions. A well-built landing page for your Google Ads campaign can double or triple your conversion rate — dramatically reducing your cost per lead.

Create a landing page
03

Local SEO

Local SEO is the practice of optimising your online presence to appear in geographically relevant searches — for example, 'web designer near me' or 'plumber in Bristol'. It involves optimising your Google Business Profile, building local citations, collecting reviews, and targeting location-specific keywords on your website.

Real-world example

Local SEO is the digital equivalent of making sure your business appears on every relevant local directory, has a sign visible from the main road, and has a reputation everyone in the neighbourhood knows about.

Why it matters for you

Over 46% of all Google searches have local intent, and 76% of people who conduct a local search on their phone visit a business within 24 hours. Local SEO is the fastest and most direct route to new in-person customers.

Improve my local ranking
04

Load Time

Load time is the number of seconds it takes for a web page to fully display in a visitor's browser. It is influenced by server quality, image sizes, the number of scripts running, and code efficiency. Google measures load time as part of its Core Web Vitals and uses it as a direct ranking factor.

Real-world example

A website that takes 5 seconds to load is like a shop where you have to wait 5 minutes before the lights come on. Most people walk away before they even see what's inside.

Why it matters for you

Studies consistently show that 53% of mobile users abandon a site that takes more than 3 seconds to load. Each additional second of load time reduces conversions by approximately 7%. Speed is not a luxury — it is a direct revenue lever.

Speed up my website
05

LCP — Largest Contentful Paint

LCP (Largest Contentful Paint) is a Core Web Vital that measures how long it takes for the largest visible element — usually a hero image or main heading — to render on screen. Google defines "good" as under 2.5 seconds and uses it as a direct ranking signal in mobile and desktop search.

Real-world example

An e-commerce site with a large, uncompressed hero image may score a 5-second LCP on mobile. Compressing the image, converting to WebP, and adding fetchpriority="high" can bring it under 2 seconds — improving both rankings and conversions.

Why it matters for you

A poor LCP means visitors see a blank or half-loaded page and leave before engaging. Improving it simultaneously boosts your rankings and your conversion rate — making it one of the highest-ROI technical fixes available.

Improve my page speed
07

Lazy Loading

Lazy loading is a performance technique that defers the loading of off-screen images and content until they are needed — i.e., when the user scrolls to them. Instead of downloading the entire page's images on initial load, the browser only loads images in the viewport. The remaining images load progressively as the user scrolls. The HTML attribute loading="lazy" enables this natively in modern browsers.

Real-world example

An estate agent's property listing page has 24 property photos. Without lazy loading: all 24 images download immediately — 8.4MB in total — whether the user sees them or not. With lazy loading: only the first 3 images load (1.1MB). Load time drops from 9.3 seconds to 1.4 seconds. Google's LCP score improves from 6.2s to 1.8s.

Why it matters for you

Lazy loading is one of the fastest, easiest performance improvements available — often requiring a single HTML attribute. It directly improves Largest Contentful Paint (LCP), a Core Web Vitals metric that Google uses as a ranking factor, while reducing data usage for mobile visitors.

Speed up my website
09

Long-tail Keywords

Long-tail keywords are search phrases containing three or more words that target a specific, narrow intent — for example "best accountant for sole traders in Cardiff" rather than just "accountant." They have lower individual search volume than broad keywords, but are far easier to rank for, have higher conversion rates (the searcher knows exactly what they want), and collectively account for over 70% of all Google searches.

Real-world example

A hairdresser struggles to rank for "hair salon London" (enormous competition). Instead, they target "balayage highlights for dark hair Islington" — 210 monthly searches, virtually no competition. They rank #1 within 6 weeks, attracting highly qualified visitors who book at 4× the rate of generic traffic.

Why it matters for you

Chasing broad, high-volume keywords against large established competitors wastes time and budget. Long-tail keywords are where small businesses win. Ranking for 50 specific, high-intent phrases that perfectly match your ideal customer's search is more profitable than fighting for one broad keyword you'll never dominate.

Find my winning keywords
10

Lighthouse (Google audit tool)

Google Lighthouse is an open-source, automated auditing tool built into Chrome DevTools and available via the command line. It analyses any web page and produces scored reports across five categories: Performance, Accessibility, Best Practices, SEO, and Progressive Web App. Each report includes specific, actionable recommendations — with explanations of the problem and guidance on how to fix it.

Real-world example

A Lighthouse audit of a clothing retailer's homepage returns: Performance 34/100, SEO 71/100, Accessibility 58/100. The top three performance issues: render-blocking stylesheets (fix: load asynchronously), no image dimensions specified (fix: add width/height attributes), and third-party tracking scripts blocking the main thread (fix: defer or replace). Fixing these three issues takes 4 hours and raises performance to 81/100.

Why it matters for you

Lighthouse is the most accessible, comprehensive free diagnostic tool available for websites. Running a Lighthouse audit on your own site gives you the same analysis Google uses to evaluate performance — with a clear priority list of what to fix first.

Audit my website
11

LLMO (Large Language Model Optimization)

LLMO (Large Language Model Optimization) is the emerging discipline of optimising content and online presence so that large language models — ChatGPT, Claude, Gemini, Perplexity — accurately represent your brand, recommend your products, and cite your expertise in their responses. It sits at the intersection of SEO, content strategy, and AI relations. Key principles include establishing factual consistency across all online platforms, building authoritative topical content, and ensuring your brand is positively represented in data sources LLMs are trained on.

Real-world example

A management consultant notices that when clients ask ChatGPT to recommend consultants in their sector, a competitor's name appears frequently and theirs does not. By publishing detailed case studies, getting featured in industry publications, and building a consistent authoritative online presence, their name begins appearing in AI recommendations within 3 months.

Why it matters for you

LLMs are increasingly acting as recommendation engines. If a potential client asks ChatGPT to recommend a web agency or accountant in their city and your name doesn't come up, you've lost a lead to a competitor — without even knowing it. LLMO is the proactive response to this shift.

Optimise my AI presence
12

llms.txt (AI instructions file)

llms.txt is an emerging web standard (proposed in 2024) — a plain text file placed at the root of a website (yourdomain.com/llms.txt) that provides structured information about the site's content specifically for Large Language Models. It functions similarly to robots.txt (for traditional crawlers) but gives AI systems a curated, machine-readable overview of your key content, services, and contact information — helping them accurately represent your business in AI-generated answers.

Real-world example

A law firm creates an llms.txt file listing their practice areas, key team members, office locations, and links to their most important content pages. When ChatGPT or Perplexity crawls the web and encounters this file, they can more accurately describe the firm's services in their AI-generated answers — reducing the risk of misrepresentation.

Why it matters for you

As AI systems increasingly generate answers about businesses from web data, ensuring they have accurate, structured information about your business reduces the risk of being misrepresented in AI responses. Creating an llms.txt file is a proactive, low-effort step toward accurate AI representation.

Optimise my AI visibility
13

Google Local Pack (Local 3-Pack)

The Google Local Pack (also called the Local 3-Pack) is the block of three business listings — with a map, star ratings, address, and phone number — that appears at the top of Google search results for local queries like "plumber near me" or "dentist in Bristol." It is the most coveted position for local businesses, appearing above all organic results and capturing the majority of local search clicks.

Real-world example

Search "pizza restaurant Edinburgh" on a mobile phone. The first 600 pixels of screen real estate show: two Google Ads, then the Local Pack with three restaurants (map, photos, ratings, phone, distance). Below that: organic results. The restaurant ranked #1 organically but not in the Local Pack receives 4× less traffic than those in the three-pack.

Why it matters for you

For local businesses, appearing in the Google Local Pack is more valuable than ranking #1 organically. The key levers are: a fully optimised Google Business Profile, consistent NAP citations, and a strong volume of recent, positive reviews. These three elements should be the priority for any local business's digital marketing strategy.

Get into the Local Pack

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