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Web Encyclopedia

Understanding the web,
in plain English.

Indexing, Internal Linking, IP Address — the I-words of web infrastructure explained simply.

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

Indexing

Indexing is the process by which Google adds a page to its search database after crawling it. Once a page is indexed, it can appear in search results. A page that isn't indexed is invisible to all search engine users. Indexing can be blocked accidentally through technical errors, noindex tags, or crawl blocks.

Real-world example

Google's index is like a vast library catalogue. Crawling is when the librarian reads the book; indexing is when they add it to the catalogue. Only catalogued books can be found by readers.

Why it matters for you

If your pages are not indexed, they generate zero organic traffic — regardless of how good the content is. Monitoring your index coverage in Google Search Console should be a routine part of any website management.

Get my pages indexed
02

Internal Linking

Internal linking means adding hyperlinks within your website that connect one of your pages to another of your pages. It helps visitors navigate between related content, keeps them on your site longer, and distributes 'link authority' from your strongest pages to pages you want to rank higher in Google.

Real-world example

Internal links are like signposts inside a museum: they guide visitors from one exhibition to the next, keeping them engaged and ensuring they don't miss the most important rooms.

Why it matters for you

A strategic internal linking structure is one of the most underused but effective SEO techniques. It tells Google which pages are most important, distributes authority across your site, and increases the average number of pages visited per session.

Strengthen my site structure
03

IP Address (Internet Protocol Address)

An IP address is a unique numerical label assigned to every device connected to the internet — whether a computer, smartphone, or server. It functions as a postal address for data packets. When you visit a website, your browser connects to the server's IP address. DNS translates the human-readable domain name into this number automatically.

Real-world example

An IP address is like the GPS coordinates of a location. Saying '48.8588° N, 2.2944° E' and saying 'the Eiffel Tower' refer to the same place — DNS translates between the two.

Why it matters for you

Understanding IP addresses helps when troubleshooting website issues, setting up email, or configuring security rules. A dedicated (non-shared) IP address for your hosting can also improve email deliverability and site security.

Get professional hosting
04

Impression

An impression is counted every time your website or ad appears in a user's view — whether on a search results page, a social feed, or a display network. In Google Search Console, impressions measure how often your pages appear in Google results for a given query, regardless of whether the user clicks.

Real-world example

A page receives 10,000 impressions per month for "web design Bordeaux" but only 200 clicks — a 2% click-through rate. Improving the meta title and description pushes CTR to 4.5%, doubling traffic with no change in ranking position.

Why it matters for you

High impressions with low clicks signal that your page ranks but fails to attract interest. Tracking impression data in Search Console reveals which queries you are visible for — and where better titles and descriptions can unlock more free traffic.

Improve my click-through rate
05

Image Alt Text

Alt text (alternative text) is a written description of an image embedded in the HTML alt attribute. It serves two purposes: it is read aloud by screen readers for visually impaired users, and it tells search engines what an image depicts — contributing to image search rankings and overall page relevance.

Real-world example

A florist's product images all have alt text like "red rose bouquet for wedding delivery Bordeaux". Google Images begins surfacing these photos for local wedding searches, generating an extra 150 visits per month at zero cost.

Why it matters for you

Missing or vague alt text leaves Google unable to understand your images. Descriptive, keyword-rich alt text improves accessibility compliance, reinforces page relevance, and opens a secondary traffic channel via Google Images.

Audit my on-page SEO
06

Artificial Intelligence (AI)

Artificial Intelligence (AI) refers to computer systems capable of performing tasks that typically require human intelligence: understanding language, recognising images, making decisions, and generating content. In the web and digital marketing context, AI powers chatbots, content generation tools, personalisation engines, SEO analysis, image recognition in Google, and generative search features like Google AI Overviews. AI is now embedded in virtually every digital marketing tool available.

Real-world example

A solicitor firm uses AI tools across three processes: an AI chatbot answers initial client enquiries 24/7, an AI writing assistant helps draft newsletters, and AI analytics flag which pages are underperforming before the next monthly review. The result: 30% more qualified leads and 6 hours of saved admin per week.

Why it matters for you

Understanding AI's capabilities — and its limitations — is now essential for any business owner managing digital operations. AI cannot replace your expertise or your client relationships, but it can dramatically accelerate and scale every task that is repeatable or data-driven.

Explore AI for my business
07

Web-optimised Image

A web-optimised image is one that has been compressed, resized, and formatted specifically for fast loading on web browsers, without visible quality loss. Techniques include converting to modern formats (WebP, AVIF), compressing at 70–85% quality, resizing to the actual display dimensions, and implementing lazy loading. Unoptimised images are the single most common cause of slow-loading websites.

Real-world example

A photographer's portfolio site uses original RAW exports: 8–12MB per image, total page weight 95MB. After optimisation — converting to WebP, resizing to 1200px wide, compressing to 85% quality — page weight drops to 1.4MB. Load time falls from 18 seconds to 2.1 seconds. Google's PageSpeed score rises from 22 to 78.

Why it matters for you

Images account for 60–80% of the average webpage's data footprint. Optimising them is the highest-impact, most immediate performance improvement available to most businesses — with direct effects on load time, bounce rate, user experience, and Google rankings.

Speed up my website
08

Inbound Marketing

Inbound marketing is a strategy that attracts customers to your business by creating genuinely valuable content — blog posts, guides, videos, FAQs — that answers their questions before they ever contact you. Unlike outbound marketing (cold calls, interruption ads), inbound draws qualified prospects in through organic search, social media, and email. Visitors who find you through inbound content already trust you before speaking to a salesperson.

Real-world example

A roofing company publishes "How to spot roof damage before winter" — a genuinely useful guide with photos and a cost estimator. It ranks on page 1 for "roof inspection checklist UK" and attracts 1,200 monthly visitors. Around 3% request a quote. That's 36 qualified leads per month from one piece of content.

Why it matters for you

Inbound marketing compounds over time — a well-ranked article keeps delivering leads for years at zero additional cost. Compared to pay-per-click advertising (which stops the moment you stop paying), inbound is the most sustainable, highest-ROI long-term growth strategy for SMBs.

Build my inbound strategy
09

User Interface (UI)

User Interface (UI) design is the visual design discipline responsible for everything a user sees and interacts with on a website or app: buttons, menus, typography, colour schemes, icons, spacing, and layout. A strong UI is visually consistent, guides the eye toward important actions, and communicates your brand's personality. UI design works hand-in-hand with UX (user experience) — UI is how things look; UX is how they work.

Real-world example

Two competitor financial advisers have equivalent services and pricing. One's website uses inconsistent fonts, grey buttons that blend into the background, and cluttered layouts. The other's site uses a clear visual hierarchy, high-contrast CTAs, and consistent branding. In user testing, 81% of participants trusted the second site more — before reading a single word.

Why it matters for you

Your website's visual design shapes how trustworthy and professional your business appears within the first 3 seconds. Poor UI design can undermine excellent services and copy — while strong UI design amplifies them. It is the visual first impression you never get a second chance to make.

Redesign my website
10

Responsive Images (srcset)

Responsive images use the HTML srcset attribute to serve different image sizes to different devices. A desktop user receives a 1400px-wide image; a smartphone receives a 480px version — saving bandwidth, reducing load time, and preventing pixelation. Without srcset, a mobile user may download a 2MB desktop-resolution image that renders at one-quarter the size.

Real-world example

A hotel website serves its hero image: 1600px (desktop, 340KB), 800px (tablet, 120KB), 480px (mobile, 45KB) — all via srcset. A visitor on a 5G phone loads the 45KB version in 0.3 seconds instead of the 340KB desktop version in 2.2 seconds. Mobile user experience — and mobile ranking — improves dramatically.

Why it matters for you

Mobile devices now account for over 60% of web traffic, and Google uses mobile-first indexing. Serving appropriately sized images to mobile users is a fundamental performance optimisation that directly affects your Core Web Vitals scores, mobile rankings, and visitor experience.

Optimise my mobile performance
11

Interstitial (Full-screen pop-up)

An interstitial is a full-screen overlay that appears on a web page — typically to display a newsletter sign-up, cookie consent banner, age verification, or promotional offer — interrupting the user's reading experience. Google has explicitly penalised intrusive interstitials since 2017, particularly on mobile, where they consume the entire screen and force users to dismiss them before accessing the content they searched for.

Real-world example

A user clicks a search result and immediately sees a full-screen pop-up: "Sign up to our newsletter — get 10% off!" They can't see the article they searched for. Google's algorithm detects this pattern from click behaviour (users click back immediately) and demotes the page in mobile rankings.

Why it matters for you

Intrusive interstitials are an easy-to-fix, high-impact SEO issue that many sites still have. Google explicitly calls them out as a mobile usability problem. Replacing full-screen pop-ups with small banners or timed overlays that don't obscure content protects your rankings and reduces bounce rate.

Audit my website's UX
12

INP (Interaction to Next Paint)

INP (Interaction to Next Paint) is Google's Core Web Vitals metric for measuring a page's overall responsiveness to user interactions. It captures the latency of all click, tap, and keyboard events during a page session — from the moment of interaction to when the browser next renders a visual update. A good INP score is under 200ms; over 500ms is considered poor and can affect your ranking. INP replaced FID (First Input Delay) as an official Core Web Vitals metric in March 2024.

Real-world example

A user clicks "Add to basket" on an e-commerce site. The button appears to freeze for 680ms before the cart updates — INP: 680ms (poor). After the development team splits up a large JavaScript bundle and defers non-critical scripts, the same interaction responds in 140ms (good). Conversion rate improves by 7%.

Why it matters for you

A poor INP score creates a website that feels sluggish and unresponsive — frustrating users and signalling low quality to Google's ranking algorithm. Since March 2024, INP is an official ranking factor. Sites with poor INP scores face both reduced user satisfaction and suppressed search rankings.

Fix my Core Web Vitals
13

Search Intent (Intention de recherche)

Search intent (also called user intent or query intent) is the underlying goal a person has when typing a query into a search engine. Google classifies intents into four main types: informational ("how does X work?"), navigational ("Facebook login"), commercial investigation ("best X for Y"), and transactional ("buy X online"). A page's content must match the dominant intent of its target keyword to rank effectively — a product page won't rank for an informational query, and vice versa.

Real-world example

A flooring company writes a detailed guide titled "Engineered Oak vs Solid Oak Flooring." The keyword "engineered oak flooring" has commercial investigation intent — users are researching before buying. The guide ranks on page 1, attracts 2,400 monthly visitors in the research phase, and links to a product catalogue — converting a significant portion into customers.

Why it matters for you

Matching your content's format and purpose to the user's actual intent is the single most important factor in whether a well-optimised page ranks or not. Content that mismatches intent — however technically perfect — will not rank. Understanding intent transforms keyword research from guesswork into a strategic process.

Build an intent-led content strategy