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Geolify Knowledge Hub

Theplaybookfor GEO & AI Search

In-depth guides on Generative Engine Optimization, AI Search Optimization and the ranking signals each AI assistant rewards. Written by the same team behind every Geolify GEO package.

Split illustration comparing a classic Google SERP of blue links on the left with an AI assistant answer card and citation chips on the rightGEO FundamentalsFeatured

Apr 11, 2026

GEO vs SEO

Generative Engine Optimization and Search Engine Optimization are not the same thing - and they're not enemies either. Here's exactly how the two disciplines differ in 2026, where they overlap, and the playbook for running both at the same time.

9 min readRead
Illustration of an AI answer card with weighted citation chips being scored by a balance scale labelled authority, freshness and entity matchAI Search

Apr 11, 2026

How AI Assistants Choose Citations

Reverse-engineered: the exact ranking signals ChatGPT, Claude, Gemini and Perplexity use to decide which sources end up in the citation chips at the bottom of an answer - and how to engineer your content to win them.

8 min readRead
Illustration of a magnifying glass over a website with a checklist showing missing crawler access, weak entity, and no schema markupAI Search

Apr 11, 2026

Why Your Site Isn't in ChatGPT

If you ask ChatGPT about your industry and your brand never gets named, this is for you. The 9 most common reasons sites are invisible to ChatGPT in 2026 - and the fix for each one, in order of impact.

7 min readRead
Illustration of crawler bots traversing a network of linked pages with arrows showing which links each bot type followsAI Search

Apr 11, 2026

Do AI Assistants Follow Links?

GPTBot, ClaudeBot, Google-Extended, PerplexityBot - what they crawl, what they ignore, whether they follow internal vs external links, and how to structure your link graph so AI assistants actually find your deep pages.

7 min readRead
Illustration of a text document labelled llms.txt at the root of a website with directives being read by AI crawler iconsTutorials

Apr 11, 2026

What Is llms.txt?

llms.txt is the robots.txt of the AI era - a single file at the root of your domain that tells LLMs what to read, what to ignore, and how to attribute your content. Here's the exact spec, a working template, and the GEO upside.

6 min readRead
Illustration of a JSON-LD code block with curly braces being parsed by AI assistant icons for ChatGPT, Claude and PerplexityTutorials

Apr 11, 2026

Schema Markup for AI Search

Not all schema is read equally. The exact JSON-LD types - Article, FAQ, HowTo, Organization, Product - that ChatGPT, Claude and Perplexity demonstrably consume, plus copy-paste templates and the gotchas that nuke parsing.

8 min readRead
Illustration of a brand entity node connected to Wikidata, Wikipedia, sameAs schema and citation sources in a knowledge graphGEO Fundamentals

Apr 11, 2026

Entity SEO for the AI Era

AI assistants don't think in keywords - they think in entities. The complete playbook for getting your brand recognised as a distinct entity by ChatGPT, Claude, Gemini and Perplexity, from Wikidata to sameAs to disambiguation.

9 min readRead
Illustration of a typewriter producing structured content blocks with headings, atomic facts and citation marks ready for AI ingestionTutorials

Apr 11, 2026

Write Content AI Assistants Cite

Forget classic SEO copywriting. AI assistants reward a very specific content shape - declarative answers, atomic facts, structured comparisons and source-grade prose. The exact format that gets you cited, with templates.

8 min readRead
Illustration of a dashboard with line charts tracking brand mentions across ChatGPT, Claude, Gemini and Perplexity over timeTutorials

Apr 11, 2026

Track AI Search Visibility

You can't optimise what you can't measure. The full stack of tools, prompts, and tracking patterns for monitoring whether ChatGPT, Claude, Gemini, Perplexity and Google AI Overviews are mentioning your brand - weekly, by query.

8 min readRead
Illustration of an attribution funnel with AI assistant referrals flowing into pipeline metrics and a dollar sign growth chartGEO Fundamentals

Apr 11, 2026

How to Measure GEO ROI

AI assistants don't pass referrer headers the way Google does - which makes attributing pipeline to GEO a different game. Here are the four working measurement models and the dashboards that prove GEO is paying for itself.

8 min readRead
Side-by-side illustration of a Google search box with short keywords versus a ChatGPT prompt with a conversational long questionGEO Fundamentals

Apr 11, 2026

AI Search vs Traditional Search

How users actually search in the AI era - longer, more conversational, more decisive. The behaviour shift from query-based search to answer-based search, what it means for funnels, and how it's reshaping every keyword strategy.

8 min readRead
Illustration of a long question-shaped prompt being matched to a page in a content map with question mark iconsTutorials

Apr 11, 2026

Long-Tail Keywords for AI Search

AI assistants don't get short head queries - they get long, question-shaped prompts. How to find them, how to map them to pages, and the content shape that converts those prompts into citations and brand mentions.

7 min readRead
Illustration of stacked Q and A speech bubbles being pulled into a Google AI Overview answer cardTutorials

Apr 11, 2026

FAQ Content for AI Overviews

Google AI Overviews lean heavily on Q&A blocks for answer synthesis. The exact FAQ format - structure, schema, length, phrasing - that gets pulled into AIO answer boxes, with a copy-paste template.

7 min readRead
Illustration of a pie chart showing AI search market share split across ChatGPT, Google AI Overviews, Perplexity, Claude and GeminiGEO Fundamentals

Apr 11, 2026

AI Search Market Share 2026

The numbers behind the AI search shift - query volume, user share, demographic split and which assistants are pulling ahead in 2026. Plus what the share split means for where you should invest GEO budget first.

8 min readRead
Illustration of a Google SERP with an AI Overview card pushing organic results down and a CTR bar chart showing the dropGEO Fundamentals

Apr 11, 2026

How AI Overviews Changed CTR

AI Overviews compress the SERP and absorb a chunk of clicks that used to go to organic. Here's the actual CTR damage by query type, the position-by-position drop, and the playbook for clawing back traffic.

8 min readRead
Illustration of a browser window showing a personalised greeting with a city name and a map pin marker over a stylised city skylineGeolocation & IP

Apr 10, 2026

Display a Visitor's City on Your Website

The complete IP geolocation guide for personalising your site by visitor city - the APIs, the code, the privacy rules, and how location signals now feed AI search and Generative Engine Optimization.

9 min readRead
Illustration of a globe with a shield icon blocking flagged country pins while allowing other regions throughGeolocation & IP

Apr 10, 2026

Block Visitors by IP Address Location

Geo-blocking explained: when to restrict access by country, the legal and technical patterns that work in 2026, the mistakes that nuke your AI search visibility, and how to do it without breaking GEO.

8 min readRead
Illustration of a browser window with a personalised hero swapping content based on visitor profile cards stacked beside itPersonalisation

Apr 10, 2026

Website Personalization Playbook

Every kind of website personalisation that actually moves the needle - location, intent, source, behaviour, returning visitors - plus the new GEO twist: how AI assistants now personalise their answers, and how to win in personalised AI search.

10 min readRead
Illustration of a smartphone displaying a city-specific phone number with a map pin connecting it to a regional dial tonePersonalisation

Apr 10, 2026

Geo-Targeted Phone Numbers (DNI)

Dynamic Number Insertion explained: how to swap your website phone number based on visitor city or country, the call-tracking pattern that powers it, and the GEO trick that makes AI assistants recommend the right local number.

7 min readRead
More guides coming

We're publishing weekly

GEO ranking factors per platform, AI citation tracking, schema markup that LLMs actually parse, and more. In the meantime, the fastest path to AI visibility is a Geolify GEO package - keyword scoped and delivered in 14 days.

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