# Website Glossary: SEO, AI Search and Web Terms > Plain definitions of 33 website, SEO and AI search terms B2B teams meet when they plan, build or move a website, from AEO and llms.txt to WCAG. Source: https://pentaclay.com/glossary # Website glossary The website, SEO and AI search terms B2B teams meet when they plan, build or move a website. Each page opens with a one-sentence answer, then explains what it means for your site. - A - C - D - F - G - H - I - L - M - N - O - R - S - T - W ## # - [301 redirect A 301 redirect is a server response that tells browsers and search engines a page has moved permanently to a new URL, sends visitors there automatically, and passes the old page’s search signals to the new address.](https://pentaclay.com/glossary/301-redirect) ## A - [Answer engine optimization (AEO) Answer engine optimization (AEO) is the practice of structuring a website’s content so that search features and AI assistants can lift it as a direct answer to a question, and name or link the source.](https://pentaclay.com/glossary/answer-engine-optimization) - [Astro Astro is an open-source web framework for building fast, content-focused websites that sends pages to the browser as HTML and adds JavaScript only to the parts of a page that need to be interactive.](https://pentaclay.com/glossary/astro) ## C - [Canonical tag A canonical tag is a line of HTML in a page’s head, written as , that tells search engines which URL is the preferred version of a page when the same or very similar content is available at more than one address.](https://pentaclay.com/glossary/canonical-tag) - [Case study A B2B case study is a page that tells the story of one named customer’s problem, what was done about it with your product or service, and what changed as a result, written so a similar buyer can picture the same outcome.](https://pentaclay.com/glossary/case-study) - [Client-side rendering (CSR) Client-side rendering (CSR) is a way of building web pages in which the server sends a mostly empty HTML file and the visitor’s browser runs JavaScript to fetch the content and draw the page.](https://pentaclay.com/glossary/client-side-rendering) - [CMS collections A CMS collection is a group of content items of the same type, such as blog posts, case studies or team members, that share a set of fields and are displayed through a shared page template.](https://pentaclay.com/glossary/cms-collections) - [Conversion rate optimization (CRO) Conversion rate optimization (CRO) is the practice of increasing the share of website visitors who take a valuable action, such as booking a demo, starting a trial or contacting sales, by improving the pages they see.](https://pentaclay.com/glossary/conversion-rate-optimization) - [Core Web Vitals Core Web Vitals are three measurements Google uses to judge the real-world experience of a web page: Largest Contentful Paint (loading), Interaction to Next Paint (responsiveness) and Cumulative Layout Shift (visual stability).](https://pentaclay.com/glossary/core-web-vitals) - [Crawl budget Crawl budget is the number of URLs a search engine is able and willing to crawl on a website in a given period, set by how much load the server can handle and how much the search engine wants to revisit the site’s pages.](https://pentaclay.com/glossary/crawl-budget) ## D - [Design system A design system is a shared set of rules, reusable components and design values, such as colors, type sizes and spacing, that a team uses to build a website or product consistently.](https://pentaclay.com/glossary/design-system) ## F - [Framer Framer is a visual website builder that lets teams design, animate and publish responsive websites on a canvas similar to design tools, with hosting, a CMS and localization built in.](https://pentaclay.com/glossary/framer) ## G - [Generative engine optimization (GEO) Generative engine optimization (GEO) is the practice of making a website’s content easy for AI systems that write answers, such as ChatGPT, Perplexity, Gemini and Google’s AI Overviews, to find, understand and cite as a source.](https://pentaclay.com/glossary/generative-engine-optimization) ## H - [Headless CMS A headless CMS is a content management system that stores and edits content but has no built-in website front end; it delivers the content through an API to a separately built site, app or other channel.](https://pentaclay.com/glossary/headless-cms) ## I - [IndexNow IndexNow is an open protocol that lets a website notify participating search engines, such as Bing and Yandex, the moment a URL is added, updated or deleted, instead of waiting for them to crawl the site.](https://pentaclay.com/glossary/indexnow) - [Information architecture Information architecture (IA) is the way a website’s content is organized, grouped, labeled and linked, so visitors can find what they need and search engines can understand how pages relate to each other.](https://pentaclay.com/glossary/information-architecture) - [Internal linking Internal linking is the practice of linking from one page of a website to other pages on the same website, so visitors and search engines can find related content and understand which pages matter most.](https://pentaclay.com/glossary/internal-linking) ## L - [Landing page A landing page is a web page designed around a single audience and a single action, such as booking a demo or downloading a report, usually built for visitors arriving from a specific campaign, ad or search.](https://pentaclay.com/glossary/landing-page) - [llms.txt llms.txt is a plain Markdown file placed at the root of a website (yoursite.com/llms.txt) that gives large language models a short summary of the site and a curated list of links to its most useful pages.](https://pentaclay.com/glossary/llms-txt) ## M - [Meta description A meta description is a short summary of a web page, written in an HTML tag in the page’s head, that search engines may show under the page title in search results.](https://pentaclay.com/glossary/meta-description) ## N - [Next.js Next.js is an open-source framework, built on React and maintained by Vercel, for building websites and web applications that can render pages on the server, at build time or in the browser.](https://pentaclay.com/glossary/nextjs) ## O - [Open Graph image An Open Graph image is the picture a website specifies, with the og:image tag, to appear in the preview card when a link to one of its pages is shared on social networks and messaging apps.](https://pentaclay.com/glossary/open-graph-image) ## R - [robots.txt robots.txt is a plain text file at the root of a website (yoursite.com/robots.txt) that tells crawlers, such as Googlebot or AI bots like GPTBot and ClaudeBot, which parts of the site they are allowed to fetch.](https://pentaclay.com/glossary/robots-txt) ## S - [Schema markup Schema markup, also called structured data, is code added to a web page that describes its content in a standard vocabulary from Schema.org, so search engines and AI systems can tell exactly what the page is about.](https://pentaclay.com/glossary/schema-markup) - [Server-side rendering (SSR) Server-side rendering (SSR) is a way of delivering web pages in which the server builds the complete HTML for a page when it is requested, so the browser, search engines and AI crawlers receive the full content straight away.](https://pentaclay.com/glossary/server-side-rendering) - [Sitemap A sitemap is a file, usually sitemap.xml at the root of a website, that lists the URLs a site wants search engines to find, often with the date each page last changed.](https://pentaclay.com/glossary/xml-sitemap) - [SOC 2 page A SOC 2 page is the part of a company’s website that states whether it holds a SOC 2 report, which type and scope it covers, and how customers can request a copy.](https://pentaclay.com/glossary/soc-2-page) - [Static site generation (SSG) Static site generation (SSG) is a way of building a website in which every page is turned into a finished HTML file ahead of time, during a build step, so the server only has to send ready-made files when someone visits.](https://pentaclay.com/glossary/static-site-generation) ## T - [Trust center A trust center is a page or portal on a company’s website that brings together its security, compliance and privacy information, such as certifications, policies, subprocessors and audit reports, for buyers and their security teams.](https://pentaclay.com/glossary/trust-center) ## W - [Web accessibility (WCAG) Web accessibility is the practice of making websites usable by people with disabilities, and WCAG (Web Content Accessibility Guidelines) is the international standard from the W3C used to measure it.](https://pentaclay.com/glossary/accessibility-wcag) - [Webflow Webflow is a visual website builder that lets teams design pages with the same structure as hand-written HTML and CSS, manage content in a built-in CMS, and host the site on Webflow’s servers.](https://pentaclay.com/glossary/webflow) - [Website migration A website migration is any project that moves a website to a new platform, domain, URL structure or hosting setup in a way that changes how search engines find and index its pages.](https://pentaclay.com/glossary/website-migration) - [Website redesign A website redesign is a project that substantially changes a website’s design, structure or copywriting, and often all three, to match where the company is now, while keeping what already works, such as search rankings and key URLs.](https://pentaclay.com/glossary/website-redesign) ## Your business grew up. Your website should too If customers need a demo just to understand what you sell, your website isn’t doing its job. - We sign an NDA on request. - You own the site, the code and every account once it’s paid. - Your first call is with Erfan, the founder. **Kazi Mohammed Erfan** Founder Don’t want to fill in the form? [Book a call directly](https://cal.com/pentaclay/discovery-call) ## Not sure? Ask AI about Pentaclay ### Pentaclay, in short Updated 17 Oct 2026 Pentaclay is a B2B website design agency for AI companies that sell to enterprises. We write, design and build marketing websites in Framer, Webflow and Next.js, and stay to help after launch. Pentaclay LLC is registered in New Mexico, USA; our team works from Dhaka, Bangladesh, with calls until 12:30pm US Eastern. Founded in 2023 by Kazi Mohammed Erfan, who brings 12 years of design experience.