The web glossary, explained without jargon.

Making a website usable by everyone, including people with disabilities: sufficient contrast, keyboard navigation, alternative text. Good practice, a legal requirement for some, and an ally of SEO.

Comparing two versions of a page to measure which one converts better, then keeping the winner. You test one element at a time: headline, button, image.

The bridge that lets two pieces of software talk to each other. APIs are what allow a website to display a map, take a payment or send a contact to your CRM.

The map of your website's pages and their hierarchy. A good structure guides visitors in three clicks and helps Google understand what you offer.

A website's trust score in Google's eyes, fed by the quality of the links pointing to it. The higher it goes, the more easily your pages rank.

A link placed on another website that points to yours. Google reads it as a vote of confidence: a few good backlinks are worth more than a hundred poor ones.

The clickable blue title of your page in Google results. One of the most powerful SEO levers: it must contain the right keyword and make people want to click.

Your website's memory: content, accounts and orders are stored there and served on demand. Invisible to visitors, vital to the website.

The articles section of your website. Well maintained, it is the best fuel for SEO: each article is a way in from Google. See our web copywriting service.

The small navigation path at the top of the page (Home > Services > ...). It helps visitors see where they are and helps Google understand the structure.

A copy of your pages kept ready to serve, so that nothing has to be recalculated on every visit. It is one of the main things that make a website fast.

The button or link that invites the visitor to act: request a quote, book a call, buy. Every page should have one, clear and unique.

An automated assistant that answers visitors 24/7. Trained on your content, it informs and qualifies without making things up. See our AI chatbot service.

The software that lets you manage a website without coding: create pages, edit text, publish. The most widely used in the world is WordPress.

The moment a visit becomes a useful action: a quote request, a call, a purchase. The conversion rate measures a website's real effectiveness, far better than the number of visits.

Small files stored by the browser to remember preferences or measure audience. They are what the consent banner required by the GDPR is about.

The art of writing to persuade: headlines, arguments, calls to action. The difference between a website that describes and a website that sells. See web copywriting.

Google's indicators that measure the speed and stability of a page: loading time, responsiveness, elements that shift. They count in your ranking.

The language that styles web pages: colours, typefaces, spacing, animations. See our HTML, CSS & JavaScript page.

The library of colours, typefaces and components that keeps a website consistent: every new page inherits the same rules.

The internet's directory: it links your domain name to the server hosting the website. It is what gets configured when a website changes host.

Invisible markup that describes your content to Google: reviews, FAQs, local business. It is the key to rich results (stars, expandable questions) in searches.

Selling online: catalogue, basket, payment, shipping. On your own shop, every sale belongs to you. See e-commerce website creation.

WordPress's visual builder: it lets you edit your website while seeing the result, with no code. See our Elementor page.

A module that adds a feature to WordPress: forms, a shop, SEO. Well chosen, they can do everything; piled up without sorting, they slow the website down.

The list of frequently asked questions and their answers. It reassures visitors, reduces emails, and can appear directly in Google through structured data.

The small icon of your website in the browser tab and bookmarks. A detail that signals a serious website.

The bottom of the page, present everywhere: secondary navigation, contact, legal notice. Often neglected, always consulted.

Your listing on Google and Google Maps: opening hours, reviews, photos, directions. The pillar of local SEO: often visited more than the website itself.

Google's free tool for tracking how your website is indexed: known pages, searches that show you, errors. Essential after any launch.

The server that stores your website and serves it to visitors. Its quality directly affects speed and availability.

The skeleton of every web page: headings, paragraphs, images, links. Its quality determines SEO and accessibility. See HTML, CSS & JavaScript.

The padlock in the address bar: exchanges between the visitor and the website are encrypted. It is the standard: without it, browsers and Google display warnings.

A page being added to Google's database. A page that is not indexed does not exist for search engines: it is the first thing to check after a launch.

Models able to understand and produce text, images and answers. Well framed, it speeds up customer service and content. See AI integration.

Everything the user sees and handles: buttons, menus, forms. A good UI is understood without instructions. See UI/UX design.

The language of interactivity: menus, animations, live calculations. Well written, it enriches the experience without slowing things down. See our dedicated page.

A key performance indicator: visits, quote requests, conversion rate, Google position. You steer a website with a few well-chosen KPIs, not with fifty.

A page designed for a single action: sign up, request a quote, buy a specific offer. Everything leads to the call to action, with no distractions.

An inbound sales contact: someone who has left their details through your website. The quality of leads depends directly on how clear the website generating them is.

The links between the pages of your own website. They guide visitors towards action and show Google which pages matter: a free and underrated SEO lever.

The updates, backups and checks that keep a website fast and secure over time. A website without maintenance ages quickly and badly. See WordPress maintenance.

An accurate preview of your website before any development, page by page. Approving a mock-up costs hours; fixing a finished website costs days. See Figma.

The text under the blue title in Google. It does not rank the page but it gets clicks: it is your free advert in the results.

Designing for the phone first, then widening to the computer screen. It makes sense: most visits happen on mobile.

What your client actually types into Google. All of SEO consists of matching your pages to those searches, without parroting them.

The strategy for getting backlinks: quality directories, local press, partners. The part of SEO that happens outside your website.

Building tools without programming, using visual platforms. Perfect for prototyping quickly; real limits in performance, freedom and subscription costs.

Your address on the internet, like widesign.fr. It belongs to you as long as you renew it: always check that it is registered in YOUR name, not a provider's.

Software whose code is free and public, like WordPress. In practice: no imposed licence, no vendor who can shut down your website, and thousands of professionals able to take it over.

Compressing and sizing images with no visible loss. The first speed reflex: a single raw photo can weigh more than the whole page.

The page shown when an address does not exist. Done well, it catches the lost visitor instead of driving them away.

How fast a website loads and responds. Every second lost costs visitors, conversions and Google positions.

The server language that runs WordPress and a large part of the web. Mastering it makes true custom work possible. See our PHP page.

A window that appears over the page. Useful sparingly and at the right moment; when intrusive, it drives people away and Google penalises abuse on mobile.

A clickable mock-up: you test the user journeys as if the website existed, before developing. See UI/UX design.

The official change of address for a URL: the old URL permanently points to the new one. Essential in a redesign so you don't lose your search rankings.

Rebuilding an existing website: design, content, technology. Done well, it keeps the SEO you have built up and transforms your image. See website redesign.

All the techniques for being found on Google without paying for advertising: technical work, content, links. An asset that grows over time. See our SEO service.

A website that adapts to every screen: phone, tablet, computer. It stopped being optional a long time ago.

The extras in Google: review stars, expandable questions, breadcrumbs. Obtained through structured data, they get more clicks at the same position.

The European regulation on personal data: consent, notices, the right to erasure. Any website that collects emails or measures its audience is concerned.

Software accessed online by subscription, with no installation. See SaaS creation to turn your process into a tool.

Being found by customers in your area: Google listing, pages per town, reviews. The number one lever for tradespeople, shops and local services. See local SEO.

Google's results page (Search Engine Results Page). Your SEO battleground: blue links, local map, rich results.

The website that presents your business and persuades people to contact you. Well designed, it is a salesperson working 24/7. See showcase website creation.

The site map intended for search engines: the list of all your pages to be indexed, sent to Google through Search Console.

The end of a page's address (e.g. /creation-site-vitrine/). Short, clear and with the right keyword: a small detail that matters for SEO.

The share of visitors who leave without taking any action. When it is high, it often signals a page that is slow, confusing or off-topic for the search.

A ready-made website model where you change the colours and text. Quick and cheap, but your competitor may have exactly the same one: the opposite of custom work.

The visitor's path to action: arrival, persuasion, form, confirmation. Every point of friction along the way costs you customers.

The choice and use of typefaces. It carries your identity as much as the logo does, and determines readability.

The full address of a web page. Stable and readable, it helps SEO and trust.

Everything users feel as they browse your website: smoothness, clarity, pleasure or friction. See UI/UX design.

A simplified black-and-white plan of a page, before any design: you approve the structure before the look.

WordPress's e-commerce solution: a shop that belongs to you, with no commission on your sales. See our WooCommerce page.

The most widely used CMS in the world: free, durable, and formidable when properly built. See our WordPress page.

An automated sequence of tasks: a completed form triggers an email, a CRM record, an invoice. See N8N automation.

The area your customers actually come from. It is what local SEO targets: being visible exactly where you sell.