Web glossary

Every web and search term, defined simply and in a citable way.

A

Alt text

Alt text is a written description of an image that screen readers read aloud and search engines use to understand the image.

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Anchor text

Anchor text is the clickable, visible words of a link, which give readers and search engines context about the linked page.

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B

Backlink

A backlink is a link from another website that points to yours, acting as a vote of trust for search engines.

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Bounce rate

Bounce rate is the percentage of visitors who leave your site after viewing only one page, without any further interaction.

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C

Call to action (CTA)

A call to action is a button or link that tells visitors what to do next, such as Book a call or Get a quote.

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Canonical URL

A canonical URL tells search engines which version of a page is the main one when the same content exists at several addresses.

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CMS (Content Management System)

A CMS is software that lets you create and update a website without writing code, such as WordPress, Webflow, or Shopify.

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Conversion rate

Conversion rate is the percentage of visitors who complete a desired action, such as booking a call or buying.

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Core Web Vitals

Core Web Vitals are three Google metrics that measure a page’s loading speed, interactivity, and visual stability.

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D

Domain authority

Domain authority is a score that estimates how likely a website is to rank on search engines, based mainly on its backlinks.

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Domain name

A domain name is the address people type to reach your website, such as bigbrowser.co.

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E

E-commerce

E-commerce is the buying and selling of products or services online, through a website with a catalog and secure payment.

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G

GEO (Generative Engine Optimization)

GEO is optimizing a website so AI assistants like ChatGPT and Perplexity cite it in their answers.

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I

Indexing

Indexing is when a search engine stores and organises a crawled page so it can appear in search results.

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K

Keyword

A keyword is a word or phrase people type into a search engine, which pages target to get found.

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L

Landing page

A landing page is a single web page built around one goal, such as capturing leads or selling a product.

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Large Language Model (LLM)

A large language model is an AI trained on vast amounts of text to understand and generate human language, powering tools like ChatGPT and Claude.

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M

Meta description

A meta description is the short summary of a page shown under its title in search results.

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O

Open Graph

Open Graph is a set of meta tags that control how your page looks when shared on social media and messaging apps.

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Organic traffic

Organic traffic is the visitors who reach your site from unpaid search results, rather than from ads.

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R

Responsive design

Responsive design builds websites that adapt automatically to any screen size, from desktop to phone.

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robots.txt

robots.txt is a text file at the root of a site that tells crawlers which pages or sections they may or may not access.

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S

SEO (Search Engine Optimization)

SEO is the practice of improving a website so it ranks higher in search engines like Google.

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SERP (Search Engine Results Page)

A SERP is the page of results a search engine shows for a query, mixing organic links, ads, and rich features like featured snippets.

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Sitemap

A sitemap is a file that lists a website’s pages to help search engines discover and index them.

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SSL certificate

An SSL certificate encrypts the connection between a website and its visitors, shown by the padlock and https.

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Structured data (Schema markup)

Structured data is code that helps search engines and AI understand the meaning of a page’s content.

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U

UX and UI design

UX design is how easy a website is to use; UI design is how it looks. Together they turn visitors into customers.

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W

Web accessibility

Web accessibility is the practice of building sites that everyone can use, including people with visual, motor, or cognitive disabilities.

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Web crawler

A web crawler is an automated bot that browses the web to discover and read pages so search engines and AI tools can index them.

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Web hosting

Web hosting is the service that stores your website files on a server and keeps them available online 24/7.

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