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GEO : être cité par ChatGPT, Perplexity et Google
GEO : comment ChatGPT, Perplexity et Google choisissent leurs sources, ce que Google recommande depuis mai 2026, les robots à autoriser et la mesure.
Library
Guides
Everything we publish, sorted by topic: an in-depth guide to start with, articles to go further, short answers to decide, definitions, comparisons and calculators to put numbers on it. Articles cite their sources.
01
Search: Google and AI assistants
Being found on Google and cited by ChatGPT, Perplexity or Google's AI overviews: useful pages, clean technical foundations and verifiable facts.
Our expertise
Fixed-price offers
- AI visibility(€3,000 excl. VAT)
- Readable by AI agents(€4,000 excl. VAT)
02
Online advertising: Google, Meta and LinkedIn Ads
A budget follows from what a client is worth: account structure, measurement through to the real enquiry, and weekly decisions.
Our expertise
Fixed-price offers
- Express Diagnostic(€500 excl. VAT)
03
Content, social media and reviews
A sustained editorial line, posts that establish expertise, reviews earned without cheating: the enquiries you do not buy by the click.
Our expertise
Fixed-price offers
- Express Diagnostic(€500 excl. VAT)
04
Email and deliverability
Emails that reach the inbox and compliant prospecting: SPF, DKIM and DMARC, the Gmail, Yahoo and Outlook requirements, CNIL rules and measurement without tracking pixels.
Our expertise
Fixed-price offers
- Express Diagnostic(€500 excl. VAT)
05
Websites and apps
Redesign, accessibility, performance, mobile apps: what makes a website bring in enquiries and an app genuinely useful.
Our expertise
Fixed-price offers
- Essential Website(€4,000 excl. VAT)
- Accessibility audit(€1,500 excl. VAT)
06
Custom software, CRM and automation
Keep off-the-shelf software, configure it or build custom: the real costs, the selection criteria and the automations that end double entry.
Our expertise
Fixed-price offers
- Express Diagnostic(€500 excl. VAT)
- Strategic Diagnostic(€3,500 excl. VAT)
Start here
Off-the-shelf or custom software: a one-hour decision
3 questions, a full 3-year cost calculation and a decision table: how to choose between off-the-shelf and custom software in a single meeting.
Articles
Short answers
- How much does a custom business tool cost in France?
- Custom CRM or off-the-shelf software: how do you choose?
- Should you replace your software subscriptions with a custom tool?
- Build in-house or outsource: should you hire a developer?
- Agency, freelancer or off-the-shelf software: who should build your business tool?
Definitions
Comparisons
Calculators and tools
07
AI agents
Profitable uses first, guardrails, the phone, and how readable your company is for the assistants that buy on behalf of their users.
Our expertise
Fixed-price offers
- Standard AI Agent(€4,000 excl. VAT)
- AI Training(€2,500 excl. VAT per day)
Start here (in French)
Agents IA en entreprise : usages rentables, limites, garde-fous et coût
Le rôle d'un agent IA dans une PME : sept usages qui rapportent, ceux qui déçoivent, les garde-fous indispensables et le coût d'un premier agent.
Articles
Short answers
Definitions
Comparisons
Calculators and tools
08
Steering and dashboards
Twelve indicators, one screen, figures updated every morning: what a leadership team looks at and how to build it.
Our expertise
Fixed-price offers
- Cockpit Starter(€3,000 excl. VAT)
09
Compliance: AI, GDPR and accessibility
The EU AI Act, GDPR, professional secrecy and accessibility: the obligations, the deadlines and the plan to meet them.
Our expertise
Fixed-price offers
- AI compliance pack(€3,500 excl. VAT)
- Accessibility audit(€1,500 excl. VAT)
A question these guides do not cover?
Ask a Stratedge expert during a free 30-minute video call. You leave with an answer and, where useful, a first estimate.