Home › Knowledge Hub › Glossary
By Sujata Dogra, Founder, Brains Media Solutions · Published 5 November 2026 · Last updated 5 November 2026
This glossary explains the 25 terms business owners hear most when they ask how to show up on Google and in AI answers such as ChatGPT, Perplexity and Google AI Overviews. Each entry starts with a one-sentence definition, then a short explanation and, where useful, an example. Where a definition relies on an outside source, we link to it.
AEO is the work of making your business the source that AI tools and search engines quote when they answer a question directly. Instead of only ranking a link, AEO aims to get your facts, your name and your advice into the answer itself: in ChatGPT, Perplexity, Google AI Overviews and voice assistants. It relies on clear answers, consistent business details and proof of expertise.
Example: ask ChatGPT “who is the best digital marketing agency in my city?” The businesses it names, and the reasons it gives, show you what it has been able to find and trust about each one. AEO works on exactly those reasons.
Related: GEO, AI citation, our AEO service
GEO is optimising your content so that generative AI tools, which write their answers rather than list links, mention and cite your business. In practice GEO and AEO overlap almost completely. GEO puts more weight on being mentioned across many trusted sources (directories, news, reviews, forums), because AI tools build their answers from what the wider web says about you, not only from your own website.
Related: AEO, AI citation
AI Overviews are the AI-written summaries that Google shows at the top of some search results, with links to the pages it drew from. Being one of those linked sources can bring visitors even when your page is not the first blue link. Google selects sources that answer the question clearly and that it already trusts.
Related: Zero-click search, Featured snippet
An AI citation is when an AI tool names or links your business or your content as a source in its answer. Citations are the AEO equivalent of a top ranking. They are earned by publishing specific, checkable facts (figures, dates, named experts, original findings) that an AI tool can safely repeat.
Answer-first content puts a direct, complete answer to the reader’s question in the first 40 to 60 words, then adds detail. Search engines and AI tools often lift that opening answer as it stands, so it has to make sense on its own. Every page in this Knowledge Hub opens this way.
Related: Featured snippet, our content marketing service
SEO is improving your website so that it appears higher in unpaid search results for the searches your customers make. It covers three areas: the content on your pages, the technical health of your site (speed, mobile, crawlability) and your reputation across the web (links, reviews, mentions).
Related: Local SEO, our SEO service
Search intent is the reason behind a search: what the person actually wants to do or find. “What is AEO” is a learning search; “AEO agency Belagavi” is a hiring search. A page ranks and converts best when it matches the intent, so a learning search needs a clear explanation and a hiring search needs services, proof and a way to contact you.
A long-tail keyword is a longer, more specific search phrase with fewer searches but clearer intent. “Website design” is broad; “website design for coaching centres in Belagavi” is long-tail. Long-tail searches are easier to rank for and usually bring visitors who are closer to buying.
A featured snippet is a short answer that Google shows in a box above the normal results, taken from one web page. Pages that answer a question in a clear paragraph, list or table under a matching heading have the best chance of being chosen.
A zero-click search is one where the person gets their answer on the results page and does not click any website. AI Overviews, featured snippets and Google Business Profiles all answer questions directly, so being named in those answers matters even when it brings fewer clicks.
E-E-A-T is the set of qualities Google’s guidance on helpful content uses to judge whether content and its creator can be trusted. It is shown through named authors with real credentials, first-hand examples, accurate sources, up-to-date pages and clear business details. Trust is the most important of the four.
Example: every article in this hub names its author, shows when it was last updated and links to the sources behind its facts, as set out in our editorial policy.
A pillar page is one in-depth guide on a broad topic, and a topic cluster is the set of shorter articles that link to it and to each other. Organising content this way shows search engines and AI tools that you cover a subject thoroughly, which helps the whole cluster rank.
A backlink is a link to your website from another website. Links from relevant, trusted sites (industry associations, local news, respected directories) tell search engines your site is worth recommending. A few strong links are worth more than many weak ones.
Local SEO is helping your business appear when people nearby search for what you offer, including on Google Maps. It depends mainly on your Google Business Profile, consistent business details across the web, reviews and a website that clearly states where you work.
Related: Google Business Profile, Local pack
A Google Business Profile is your free business listing on Google Search and Google Maps, showing your address, hours, phone, photos and reviews. For local businesses it is often seen more than the website itself. It needs verifying, accurate categories, regular updates and steady reviews.
Related: our Google Business Profile service
The local pack is the box of three businesses with a map that Google shows for searches with local intent, such as “digital marketing agency near me”. Getting into it depends on how relevant your profile is to the search, how close you are to the searcher and how prominent your business is (reviews, links, mentions).
NAP consistency means your business Name, Address and Phone number are written exactly the same way everywhere they appear online. Mismatched details (an old address on the website, a different one on Google) make search engines and AI tools less sure which information is correct.
Example: during our own website rebuild we found the address on our Contact page did not match our verified Google Business Profile, and changed every page to the verified version.
Schema markup is code added to a web page that tells search engines exactly what the page is about, such as a business, an article, an author or a list of questions. It is invisible to visitors. It helps Google show richer results and helps AI tools read your facts accurately. The most common format is JSON-LD, which sits in a small block of code on the page.
Crawling is when a search engine’s software visits your pages; indexing is when it stores them so they can appear in results. A page that cannot be crawled or is not indexed will not show up in search, however good it is. Google Search Console shows which of your pages are indexed and why others are not.
robots.txt is a small file on your website that tells search engine and AI crawlers which parts of the site they may visit. A wrongly written robots.txt can block Google or AI tools from your whole site, so it is worth checking. You can see any site’s file at its address followed by /robots.txt.
An XML sitemap is a file that lists the pages on your website you want search engines to find. It helps new and updated pages get discovered faster. You submit it once in Google Search Console and Bing Webmaster Tools, and SEO plugins keep it up to date.
IndexNow is a way for a website to tell participating search engines, including Bing, the moment a page is added or changed. Instead of waiting for a crawler to return, the site sends a ping, so updates can appear faster. Google does not currently use IndexNow, so a sitemap in Google Search Console is still needed.
llms.txt is a proposed file that gives AI tools a short, plain-text guide to a website’s most important pages. It is a newer, voluntary idea rather than an official standard, and AI companies have not confirmed how much they use it. It is quick to add, but it does not replace clear pages, consistent details and schema markup.
Core Web Vitals are three measurements Google uses to judge how good a page feels to use: how fast the main content loads, how quickly the page responds to a tap or click, and how stable the layout is while loading. You can check them for free with Google’s PageSpeed Insights; Google’s web.dev guide explains each measurement. Slow, jumpy pages lose visitors, especially on mobile.
Cost per lead is how much you spend on advertising for each enquiry you receive. It is total ad spend divided by the number of enquiries. A ₹20,000 campaign that brings 40 enquiries has a cost per lead of ₹500. It is a better guide than clicks, but the final test is how many of those leads become paying customers.
Related: our performance marketing service
Knowing the terms is the first step. If you want to see how your business shows up on Google and in AI answers today, book an AI Visibility Audit or explore the rest of the Knowledge Hub.
About the author: Sujata Dogra founded Brains Media Solutions in 2008. She has more than 20 years of professional writing experience and spent 9 years running Magicbricks’ property content operations, producing over 2,000 property descriptions a month.