eThinking and GEO Metrics: How an Agency Offers AI Monitoring to Its Clients
Case study: how eThinking, a Madrid marketing agency, uses GEO Metrics to audit, monitor and report its clients' AI visibility on ChatGPT, Gemini and Perplexity.

TL;DR
eThinking is a marketing and communications agency based in Madrid that manages its clients' AI visibility using GEO Metrics as its central platform. Site audits, daily monitoring across 9 models, sentiment analysis, prioritized recommendations and Looker Studio-integrated reports are the workflow that Daniel González, the project lead, has built into the agency's service offering. This article explains how they do it, why they chose GEO Metrics and what has changed in how eThinking reports value to its clients.
Less than a year ago, the question that came up most in marketing agency follow-up meetings was: "How do we rank on Google?"
Today that question has a second part that clients no longer leave out: "And on ChatGPT? And on Perplexity?"
For most agencies, that second part still has no answer. Not because they don't want to give one — but because they don't have the data to do so.
eThinking decided to solve that problem before its clients stopped asking.
Who Is eThinking
eThinking is a marketing and communications agency based in Madrid. They have spent years helping companies transform their digital presence with a results-oriented approach — not an activity-oriented one.
Their service portfolio spans consulting and web development through content marketing, brand positioning, customer experience and data analytics. They work with companies of different sectors and sizes, with a clear philosophy: measure, evolve and improve continuously.
That culture of measurement is precisely what led them to GEO Metrics.
The Challenge: Clients Asking About AI With No Data to Answer
In 2026, traffic from AI engines grew 527% year-over-year. eThinking's clients started to notice, and to ask. They wanted to know whether their brands appeared in ChatGPT when someone searched for their services. They wanted to know what Perplexity said about them. They wanted to understand whether Gemini recommended them or ignored them.
The problem was structural: without a specific tool to measure AI visibility, any answer was an estimate. And estimates don't get invoiced as a service — nor do they generate the trust a client needs to invest in a new discipline.
eThinking needed real data. It needed a platform that measured its clients' visibility across the relevant AI models, generated clear reports and integrated with the work stack they already used.
Why They Chose GEO Metrics
The choice of GEO Metrics was not random. eThinking operates primarily in the Spanish market and with Spanish-speaking clients — which ruled out most English-language platforms from the start, whose data is generated in English and calibrated for the US or UK market.
GEO Metrics was designed specifically for Spain and LATAM. Its data is generated in Spanish, its prompts reflect how Spanish-speaking users actually search, and its coverage of 9 models — ChatGPT, Gemini, Perplexity, Claude, Copilot, DeepSeek, AI Mode, AI Overviews and Grok — gives the agency a complete view of the ecosystem where its clients need visibility.
The pricing model was also decisive: unlimited brands from the first plan, with no additional cost per client. For an agency managing multiple accounts, that model makes the service viable without compressing margin.
How eThinking Uses GEO Metrics in Its Workflow
Daniel González, GEO project lead at eThinking, has integrated GEO Metrics into every phase of the service, from the initial audit through to the monthly results report.
Initial Audits With Site Analysis
The starting point for any new client is GEO Metrics' Site Analysis module. Before configuring monitoring prompts, eThinking audits the technical infrastructure of the client's domain with two tools integrated in the platform:
GEO Readiness Score — evaluates how optimized the site's content is to appear in AI-generated responses. Identifies gaps in heading structure, direct answers, FAQs and structured data.
GEO Agent Score — analyzes whether the domain is readable by AI agents crawling the web: robots.txt, llms.txt, Schema Markup, HTTP headers and MCP protocols.
The audit result defines the client's technical and editorial roadmap — what needs to be implemented before monitoring generates meaningful data.
Daily Monitoring Across 9 Models
Once the project is configured, GEO Metrics runs the client's strategic prompts across all 9 AI models daily. eThinking configures between 20 and 40 prompts per client, divided across several contexts corresponding to each brand's main products and services, covering the most relevant intents in their category — informational, comparative and transactional.
The data the platform generates for each client includes:
Share of Voice by model and by prompt
Average position in each response engine
Domain citations — which client URLs are being referenced by AIs
Daily evolution — how data changes period over period
Daily monitoring is critical to eThinking's workflow. AIs like Perplexity update their responses within hours following new mentions in media or Reddit. Without daily data, the agency cannot correlate its content or PR actions with visibility results — and without that correlation, it cannot demonstrate the impact of its work.
Sentiment Analysis — Beyond "You Appear or You Don't"
One of the modules eThinking uses most deeply is Deep Sentiment Analysis. The reason is simple: for its clients, knowing they appear in AIs is not enough — they need to know how they appear.
Are AIs citing the brand as the recommended option or as a secondary alternative? Is the tone neutral, positive or are there signals that an external source is generating a negative perception? Does sentiment vary between ChatGPT and Claude for the same prompts?
GEO Metrics' sentiment analysis forces models to issue comparative verdicts and justify them, revealing the exact sources that build a brand's perception in each AI. For eThinking, that turns sentiment analysis into an actionable strategy tool — not just a generic diagnosis.
Prioritized Recommendations
GEO Metrics v2's Recommendations module is, according to Daniel, one of the most valuable for the agency's daily operations. The engine cross-references three data sources simultaneously — monitoring data, content audits and technical infrastructure signals — and generates recommendations prioritized by real visibility impact.
For eThinking, that means the platform tells them every week exactly what to do first: which prompt has the largest position gap, which client URL should be cited but isn't, which external source is gaining space in the models at the expense of the client's brand.
It is the difference between having data and knowing what to do with it.
Looker Studio and In-App Reports
Reporting is a critical part of any agency's service. eThinking integrates GEO Metrics data in two ways:
Looker Studio — GEO Metrics' native integration with Google Looker Studio allows eThinking to build consolidated dashboards where AI visibility data lives alongside organic traffic (GA4) and search performance (GSC). The client sees everything in a single view: how their traditional traffic evolves, how their Google rankings evolve and how their AI presence evolves — with the same time granularity and the same visualization system.
In-app reports — for internal reviews and quick presentations, GEO Metrics generates exportable reports directly from the platform with Share of Voice, position, accuracy and sentiment data by period. eThinking uses them in client follow-up meetings as the starting point for strategic conversation.
What Daniel González Says About GEO Metrics
"When we started looking for a platform that would let us analyze our clients' positioning in AI search engines, we were looking for exactly what GEO Metrics offers: a complete and in-depth view of a brand's presence in AI search engines, a platform that combines visibility, competition, sentiment, sources and technical site analysis in a single environment, enabling genuinely useful and actionable GEO diagnostics. And the best part is the GEO Metrics team — a very professional and approachable team, committed and always ready to listen and help, implementing improvements that allow us to offer our clients a better service every day."
— Daniel González García, eThinking
The Impact on eThinking's Business
Integrating GEO Metrics into eThinking's workflow has had three concrete impacts on their business model:
A new service line with real demand. The client question already existed — eThinking now has the data to answer it and the proposal to invoice it. GEO has become a service that complements and strengthens the content and SEO work they were already doing.
A differential sales argument. In meetings with new prospects, eThinking can show in real time how the client's brand appears across the 9 AI models, compared to their direct competition. That audit — generated in minutes from GEO Metrics — is one of the most powerful acquisition arguments they have today.
Reports that speak the client's language. AI Share of Voice is a metric clients understand intuitively — it is the equivalent of traditional marketing share of voice, applied to the AI ecosystem. That makes follow-up conversations more direct and makes the value of the work more visible.
The GEO Metrics Agency Program
eThinking is part of the GEO Metrics Agency Program — a model designed specifically for agencies that want to offer GEO as a service to their clients.
The program includes:
Unlimited brands from the first plan — no additional cost per client
Active support in the first closes and prospect demos
Ready-to-use marketing materials
Access to all platform features: daily monitoring across 9 LLMs, Site Analysis, Deep Sentiment Analysis, Recommendations, Citation Intelligence, Looker Studio integration and MCP
More than 60 leading agencies in Spain and LATAM already have GEO Metrics as part of their stack. The initial audit for any client — knowing exactly where their brand stands across the 9 main AIs today — takes less than 10 minutes to configure.
Discover the Agency Program → trygeometrics.com/agency-program
Frequently Asked Questions
How long does it take eThinking to onboard a new client in GEO Metrics? Less than 10 minutes. The brand is configured, the strategic prompts are defined and the platform starts monitoring from that same day. The first Share of Voice report is available within the first 24 hours.
What makes GEO Metrics different from other tools eThinking evaluated? Coverage of 9 models in Spanish from the first plan, daily monitoring and the pricing model with no additional cost per client were the determining factors. English-language platforms generate data in English — for an agency working with Spanish clients, that is not sufficient. Added to that is the platform's ability to provide a very broad and comprehensive view of a brand's situation in AI search engines: from the technical and content situation of its website, to its visibility, sentiment and source analysis with very granular detail, which, together with the recommendations module, allows designing a specific roadmap for each project with measurable results from the first month of work.
How does eThinking integrate GEO Metrics data into its client reports? Through the native Looker Studio integration, which consolidates AI visibility data with GA4 and Google Search Console data in a single dashboard. For quick meetings, they use the exportable reports directly from the platform.
Does the agency program have a different cost from the standard plan? The GEO Metrics Agency Program gives access to the platform's standard plans with unlimited brands. To learn about the specific program terms, book a demo at trygeometrics.com/agency-program.
About eThinking
eThinking is a marketing and communications agency based in Madrid, specializing in digital strategy, content marketing, SEO and data analytics. They work with companies of different sectors and sizes with a clear philosophy: measure, evolve and improve continuously. If you are looking for an agency that understands the new AI search ecosystem and knows how to turn visibility data into actionable strategies, you can find them at ethinking.es.
Are you an agency and want to offer AI visibility monitoring to your clients?
Talk to the GEO Metrics team → trygeometrics.com/agency-program
GEO & AEO expert focused on making brands visible inside AI-generated answers. He leads GEO Metrics, measuring how models like ChatGPT and Gemini cite, rank, and describe brands. His work helps companies move from SEO rankings to true visibility in AI-driven search.
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