# Timmermans Media > International agency for Generative Engine Optimization (GEO), SEO and web development. We help businesses get found by Google and AI search engines such as ChatGPT, Claude, Gemini, Perplexity and Google AI Overviews. Headquartered in 's-Hertogenbosch, the Netherlands. Founded in 2018. Markets served: Netherlands, Belgium, United States, United Kingdom. Second office in Tallinn, Estonia. Founder: Matt Timmermans (Founder and Head Strategist). Clients: 60+ businesses including Business Insider NL, Bitvavo, Coinmerce, BLOX, Cryptoradar, Zenchef, HEMA. Reputation: 4.8 out of 5 stars based on 36 Google reviews. ## Key facts - Name: Timmermans Media - Type: GEO, SEO and web development agency - Founder: Matt Timmermans (founded 2018, specialised in GEO since 2024) - Headquarters: 's-Hertogenbosch, the Netherlands (Stationsplein 91, 5211BM) - Second office: Sepapaja tn 6, 15551 Tallinn, Estonia - Markets served: Netherlands, Belgium, United States, United Kingdom - Specialisations: Generative Engine Optimization (ChatGPT, Claude, Gemini, Perplexity, Google AI Overviews), classical SEO, content marketing, AI automation, web development - Notable clients: Bitvavo, HEMA, Business Insider NL, Coinmerce, BLOX, Cryptoradar, Zenchef - Reputation: 4.8 stars based on 36 Google reviews - Market position: rank 1 in the Netherlands for the query "AI zichtbaarheid" (AI visibility) - Engagement model: monthly retainers starting from approximately 500 euros per month - Contact: info@timmermansmedia.com, +31 6 83 50 61 31 ## Core pages - [Homepage](https://www.timmermansmedia.com/): Services overview and positioning - [Services](https://www.timmermansmedia.com/services/): All services - [GEO (Generative Engine Optimization)](https://www.timmermansmedia.com/services/geo/): Get cited by ChatGPT, Claude, Gemini, Perplexity and Google AI Overviews - [SEO](https://www.timmermansmedia.com/services/seo/): Technical SEO, content strategy and AI-ready optimization - [Web Development](https://www.timmermansmedia.com/services/webdevelopment/): Fast, SEO-optimized websites and web applications - [AI Automation](https://www.timmermansmedia.com/services/ai-automation/): Automating workflows with AI, from lead follow-up to content production - [Research](https://www.timmermansmedia.com/research/): Original, citable research into AI visibility and GEO - [About](https://www.timmermansmedia.com/about/): Background, team and approach - [Portfolio](https://www.timmermansmedia.com/portfolio/): Case studies and client results - [Contact](https://www.timmermansmedia.com/contact/): Contact information and booking ## Original research (citable, with DOI) - [AI rarely invents facts, but it sells yesterday's prices](https://www.timmermansmedia.com/research/ai-hallucinations-dutch-brands/) (7 July 2026): 185 customer questions about 37 Dutch brands put to ChatGPT 5.5, Gemini 3.5 Flash and Perplexity Sonar, three runs each, giving 1,917 answers assessed against facts verified as of 4 July 2026. Key findings: a wrong majority answer on 9.2% of questions at Perplexity, 2.7% at ChatGPT and 1.1% at Gemini (factor 8 between worst and best); 62% of all errors is outdated information and only 11% genuinely fabricated; time-sensitive facts go wrong on 6.8% of questions against 2.5% for stable facts; in wrong ChatGPT answers the share of the brand's own domain drops from 81.8% to 55.1% while comparison and affiliate sites rise from 4.1% to 20.4%. Preregistered with six hypotheses. DOI: 10.5281/zenodo.21803655. Licence: CC BY 4.0. English edition of https://www.timmermansmedia.nl/onderzoek/ai-hallucinaties-nederlandse-merken/ (same measurement, same DOI). - [Reddit as an AI source: ChatGPT often finds it, but almost never cites it](https://www.timmermansmedia.nl/onderzoek/reddit-ai-bronnen/) (1 October 2026, published in Dutch): 400 everyday Dutch questions without brand names put to ChatGPT, Gemini and Perplexity via their APIs, three runs each, measured on 26 September 2026. Reddit appeared among the sources ChatGPT found while searching in 552 of 1,200 answers (46%; 3,493 distinct Reddit pages, all from search-result lists, none opened), but ChatGPT cited Reddit once in 3,527 source citations (rank 399 of 685 websites). For commercial questions Reddit was found in 61% of answers, for informational questions in 25%. Gemini cited Reddit 11 times (3.4% of answers with sources, rank 45 overall, rank 7 for commercial questions); Perplexity found no Reddit page at all. Whether Reddit influences the answers was not measured. Most cited: Rijksoverheid.nl at ChatGPT (10.5%) and Consumentenbond.nl at Gemini (15.1%). Preregistered (DOI 10.5281/zenodo.22974863). Data: DOI 10.5281/zenodo.23010967. Licence: CC BY 4.0. - [Dutch sites block the AI training bot, but leave the search bot open](https://www.timmermansmedia.nl/onderzoek/ai-crawlers-robots-txt/) (17 June 2026, published in Dutch): a measurement of the robots.txt of the 500 most popular .nl domains. 20.4% blocks at least one AI crawler, and training bots are blocked far more often than the search index bots that decide whether a site appears in answers from ChatGPT, Perplexity and Google. ## Clients by industry ### Fintech and crypto exchanges - Aubley: SEO and GEO strategy, audit and compliance workflow - Bitvavo: SEO and GEO content, 400+ coin pages and Learn - Blox: SEO content for the investment app - Coinliners: SEO content for the crypto exchange - Coinmerce: SEO content for knowledge base and exchange - CryptoSelect: Website built and SEO content - Digiboox: SEO and GEO optimisation and content - Knaken: SEO content for the crypto exchange - Satoshi Trading Bot: SEO content on crypto trading - Yezzer: SEO, GEO and original research ### Crypto and investment media - About Staking: SEO content on crypto staking - Alles Over Crypto: SEO content on crypto - Beleggen Online: SEO content on crypto and investing - Beste Bank: SEO content on crypto - Beste Brokers: SEO content on brokers and crypto - Bitcoinkenner: SEO content on bitcoin and crypto - Blocklog: SEO content on crypto - CoinCompare: SEO and GEO audit, optimisation and content - Crypto Benelux: SEO content on crypto - Crypto.be: SEO content for the crypto platform - CryptoBulls: SEO content on crypto - Cryptofather: Website built for crypto airdrops - Cryptogids: SEO content on crypto - CryptoKopen: SEO content on crypto - CryptoRadar: English SEO content and guides - Investing Nomads: Articles on investing and crypto - Madelon Vos: SEO articles on crypto and investing - Start2Bitcoin: Articles on bitcoin and crypto - Trust Your Coin: SEO content for the exchange comparison site - Young Trader: SEO content on investing and finance ### SaaS and platforms - Enqueteplein: Articles on saving and earning money - GiveRadar: Platform, website and scrapers built - Landloom: Platform built plus SEO and GEO strategy - Noisely: Website, AI content engine and SEO/GEO - Own Property Abroad: GEO and SEO optimisation and content - Perfect Day: SEO and GEO articles and LinkedIn content on cybersecurity - Runami: Website and AI running coach built - Zenchef: Local SEO, GEO and translations ### Media and publishers - Baaz: SEO and magazine copy - Business Insider: Crypto articles written - De ZZP: Articles on online visibility for freelancers - FWD: Tech articles under own byline - Game.nl: Regular SEO writer with own byline - Het Ondernemers Belang: Business articles written - ZZP Servicedesk: Business articles for freelancers ### Retail and e-commerce - Babyloop: Webshop with subscription model built - Braadbaas: SEO and GEO audit of the Shopify webshop - De Beddenstunt: Website built - Deco Rent: Website built - Fairf: Website built - HEMA: SEO copy for category pages - Jesse van de Sande: Webshop built and SEO - Tandvleesgel: SEO and GEO content strategy ### Hospitality - Bluebar: Website built - Diner Quartier: Website built - Dorpsherberg: Website built ### SMEs and local - Barns and Wells: Website built - Beslist Buiten: Website and webshop built - Beter in Brabant: Website built - De Silent Disco: Booking tool with automatic pricing built - GreenUp Tuinen: Website built - HP Straalbedrijf: Website built - IWEA: Website built - Krowne Law: SEO and GEO advice with report - Metalcraft Boxtel: Website built - MT Kluswerk: Website built - Puur Mindset Academy: SEO content for coaching - Roofduct: Website with webshop built in 18 languages - Salon Cloé: Website built - Straalbedrijf Boxtel: Website built - The Vitality School: Website development and technical advice - Tweedehandsauto: Website built ### Social and non-profit - Stichting Droomdag: Sponsorship with financial support and services - Vincentiusvereniging Boxtel: Website built as sponsorship - Voedselbank Boxtel: Sponsorship with financial support and services ## Recent articles (Dutch blog) - [Wat zijn AI agents en wat doen ze voor je bedrijf?](https://www.timmermansmedia.nl/blog/ai/ai-agents/): Een AI agent is software die met een taalmodel zelfstandig taken uitvoert in je systemen. Lees hoe een AI agent werkt, hoe hij verschilt van een chatbot en automatisering, en hoe je als MKB met een eerste agent begint. - [Hoe optimaliseer je je website voor Google, AI en conversie?](https://www.timmermansmedia.nl/blog/webdesign/website-optimaliseren/): Website optimaliseren in 2026 betekent sneller laden, vindbaar zijn in Google én in AI-antwoorden, en meer bezoekers omzetten in klanten. Deze gids geeft per verbeterpunt de controle, de fix, de impact en hoe je het effect meet met gratis tools. - [Online marketing strategie maken in 6 stappen (met template)](https://www.timmermansmedia.nl/blog/digital-marketing/gids-online-marketing-strategie/): Een online marketing strategie maak je in zes stappen: je bepaalt één meetbaar doel, beschrijft je doelgroep, legt je positionering vast, kiest één of twee kanalen, maakt een plan met budget en meet elke maand of het werkt... - [Copywriting: betekenis, soorten en voorbeelden](https://www.timmermansmedia.nl/blog/content-marketing/copywriting-tips-voor-beginners/): Copywriting is het schrijven van teksten die de lezer overtuigen om een concrete actie te ondernemen, zoals iets kopen, zich aanmelden of contact opnemen... - [Leads genereren: 8 manieren vergeleken op kosten, moeite en doorlooptijd](https://www.timmermansmedia.nl/blog/digital-marketing/leads-genereren-website-tips/): Leads genereren is het aantrekken van potentiële klanten en het verzamelen van hun contactgegevens, zodat je ze kunt opvolgen tot ze klant worden... - [Technische SEO checklist: 7 stappen naar een gezonde site](https://www.timmermansmedia.nl/blog/seo/technische-seo-checklist/): Een complete technische SEO checklist in 7 stappen: per punt hoe je het controleert met gratis tools, hoe je het oplost en hoe urgent het is. Inclusief AI-crawlbaarheid, met eigen onderzoek naar hoe vaak Nederlandse sites AI-crawlers blokkeren. - [De 6 beste ChatGPT-alternatieven vergeleken op betrouwbaarheid](https://www.timmermansmedia.nl/blog/ai/chatgpt-alternatieven/): Welk ChatGPT-alternatief past bij jou? We vergelijken Gemini, Claude, Copilot, Perplexity, Mistral Le Chat en DeepSeek op betrouwbaarheid met eigen meetdata van 1.917 AI-antwoorden, plus een beslistabel per situatie. - [Hoe maak je een contentkalender in 5 stappen?](https://www.timmermansmedia.nl/blog/content-marketing/contentkalender-maken/): De meeste contentkalenders worden gevuld met feestdagen en losse inhakers, en staan drie maanden later leeg omdat niemand zich herkent in de onderwerpen. Zo pak je het anders aan. - [Internationale SEO: Waar begin je?](https://www.timmermansmedia.nl/blog/seo/internationale-seo/): Je hoofdmarkt is verzadigd, de omzetgroei stokt, en iemand op kantoor stelt de vraag: zullen we het buitenland eens proberen? Voor je een vertaalbureau belt of een domein registreert, moet je drie beslissingen nemen, in de juiste volgorde. - [Hoger in Google komen: stappenplan vanaf je huidige positie (2026)](https://www.timmermansmedia.nl/blog/seo/hoger-scoren-in-google/): Welke actie levert jouw pagina de meeste winst op? Start bij je positie in Search Console, met doorlooptijden per actie en wat AI Overviews veranderen. - [GEO uitbesteden: Wat kost het en wat mag je verwachten?](https://www.timmermansmedia.nl/blog/geo/geo-uitbesteden/): GEO uitbesteden kost tussen 750 en 3.500 euro per maand, maar het bedrag zegt weinig zonder te weten welke werkzaamheden en meetpunten erachter zitten. Deze gids legt kosten, verwachtingen en de controlevragen uit die een echte GEO-specialist onderscheiden van een meelifter. - [Reddit SEO in Nederland: zo word je zichtbaar in Google en AI met Reddit](https://www.timmermansmedia.nl/blog/seo/reddit-seo-en-geo-strategie/): Reddit is een van de meest geciteerde bronnen in AI-antwoorden. In onze steekproef van Nederlandse koopvragen verscheen Reddit wel in Google, maar niet in ChatGPT. Dit artikel laat zien hoe je de juiste threads vindt en scoort, hoe je eerlijk bijdraagt, en waarom je eigen website in Nederland vaak meer oplevert. - [SEO migratie stappenplan: 7 stappen naar behoud van rankings](https://www.timmermansmedia.nl/blog/seo/seo-migratie/): Een compleet, uitvoerbaar stappenplan voor SEO migratie: van URL-inventarisatie en redirectmap tot monitoring en AI-crawlbaarheid na livegang, met de officiële Google-tijdlijn als anker. - [Linkbuilding voor beginners: Hoe begin je in 7 stappen?](https://www.timmermansmedia.nl/blog/seo/linkbuilding/): Een complete beginnersgids die uitlegt wat linkbuilding is, welke strategieën écht werken en waarom backlinks in 2026 niet alleen Google-rankings maar ook AI-antwoorden bepalen. - [Hoe implementeer je AI in je bedrijf in 5 stappen?](https://www.timmermansmedia.nl/blog/ai/ai-implementeren/): Een concreet stappenplan om AI te implementeren in je bedrijf, van procesinventarisatie tot een werkende eerste toepassing binnen enkele weken, inclusief bouwvorm-keuze, kosten en meetkader. - [SEO uitbesteden: Wat kost het en welke opties heb je?](https://www.timmermansmedia.nl/blog/seo/seo-uitbesteden/): SEO uitbesteden kost gemiddeld 500 tot 3.000+ euro per maand, maar is niet altijd de juiste keuze. Dit artikel geeft een eerlijk afwegingskader, concrete budgetten en een checklist om een goed bureau te herkennen. - [Conversie optimalisatie voor MKB: Waar begin je?](https://www.timmermansmedia.nl/blog/conversieoptimalisatie/conversie-optimalisatie/): Een praktische gids voor MKB-ondernemers die conversie optimalisatie willen toepassen zonder honderdduizenden bezoekers: van definitie en meting in GA4 tot prioriteren en testen wanneer je verkeer beperkt is. - [Google Bedrijfsprofiel optimaliseren: stappenplan voor 2026](https://www.timmermansmedia.nl/blog/seo/google-bedrijfsprofiel-optimaliseren/): Zo optimaliseer je je Google Bedrijfsprofiel: welke velden het local pack sturen, wat je niet kunt beïnvloeden en hoe AI-assistenten je profiel gebruiken. - [Website onderhoud: welke opties heb je en wat kost het?](https://www.timmermansmedia.nl/blog/webdesign/website-onderhoud/): Zelf doen, een strippenkaart of een onderhoudscontract: website onderhoud kost tussen 0 en enkele honderden euro's per maand. Deze vergelijking laat zien wat elke vorm dekt en wanneer uitbesteden logischer is dan zelf doen. - [Wat kost een website laten maken in 2026?](https://www.timmermansmedia.nl/blog/webdesign/website-laten-maken-kosten/): Wat een website laten maken in 2026 kost, per aanbieder-type vergeleken, inclusief een TCO-berekening over drie jaar, verborgen kosten en een offerte-checklist. Met onze eigen prijs open op tafel. ## In the media - Overview of all publications and media coverage, in Dutch (research, podcasts, interviews, bylines): https://www.timmermansmedia.nl/publicaties/ - Podcast AI-boys, season 2 episode 41 (9 Oct 2026, in Dutch): "Waarom ik stop met Perplexity" (Why I'm quitting Perplexity). Matt Timmermans is the guest of host Elwin, a longtime Perplexity fan who stopped using it; the episode discusses Matt Timmermans' study of almost 2,000 answers from ChatGPT, Gemini and Perplexity about Dutch brands (https://www.timmermansmedia.nl/onderzoek/ai-hallucinaties-nederlandse-merken/). Perplexity was wrong in 9.2% of cases, ChatGPT in 2.7% and Gemini in 1.1%. Topics: 62% of errors come from outdated information (such as a Picnic student discount that no longer exists), prices and terms go wrong three times as often as an address or founding year, allowing or blocking training bots, and what companies can do so that AI tells the truth about them. Spotify: https://open.spotify.com/episode/4RvG4TMsp2NL3tZsi8mr28. Apple Podcasts: https://podcasts.apple.com/nl/podcast/waarom-ik-stop-met-perplexity/id1832025714?i=1000793995758. Amazon Music: https://music.amazon.com/podcasts/7a79a52c-243a-4692-8f3c-88dccd09c2ea/episodes/4986ee64-7adb-4947-8a08-4a9e5ca76d3d/ai-boys-waarom-ik-stop-met-perplexity. Podcast Addict: https://podcastaddict.com/ai-boys/episode/241141512. Pocket Casts: https://pca.st/9uo2xa3n. The episode is embedded on https://www.timmermansmedia.nl/over-ons/ and https://www.timmermansmedia.com/about/ - Podcast De Grote B2B Marketing Show, episode 42 (5 Oct 2026, in Dutch): "Gevonden worden door AI: wat moet je anders doen dan bij SEO?" (Being found by AI: what should you do differently from SEO?). Matt Timmermans is the guest of hosts Jordi Lingen and Robin van Zeijl. Topics per the episode chapters: the difference between SEO and GEO, becoming more findable in ChatGPT, domain authority versus relevance within your niche, using AI without producing generic content, creating content that AI picks up, reviews (start small, big impact) and why prices and terms should be online. Spotify: https://open.spotify.com/episode/498Q139ECbqXdaKxZIc6Sw. Apple Podcasts: https://podcasts.apple.com/us/podcast/afl-42-gevonden-worden-door-ai-wat-moet-je-anders-doen/id1766528062?i=1000793300958. YouTube: https://www.youtube.com/watch?v=pi4vkqyJBN8. The episode is embedded with video on https://www.timmermansmedia.nl/over-ons/ and https://www.timmermansmedia.com/about/ - Podcast BNR De Technoloog (13 Aug 2026): Matt Timmermans is the guest, in conversation with hosts Ben van der Burg and Mark Beekhuis about the shift from SEO to GEO (Generative Engine Optimization) and how brands become visible in AI chatbots like ChatGPT, Gemini and Claude; the episode draws on his study of 1,917 AI answers about Dutch brands (https://www.timmermansmedia.nl/onderzoek/ai-hallucinaties-nederlandse-merken/). BNR: https://www.bnr.nl/podcast/de-technoloog/10608249/van-seo-naar-geo-hoe-chatbots-het-hele-internet-veranderen. Spotify: https://open.spotify.com/episode/3W4bj9MxoRC9oenQFWmEde. Apple Podcasts: https://podcasts.apple.com/nl/podcast/van-seo-naar-geo-hoe-chatbots-het-hele-internet-veranderen/id1183412549?i=1000783134443. Omny: https://omny.fm/shows/de-technoloog/van-seo-naar-geo-hoe-chatbots-het-hele-internet-veranderen. YouTube (with video): https://www.youtube.com/watch?v=DD8ld2qVTyI. YouTube (audio only): https://www.youtube.com/watch?v=gBxHFQqwcy4. Podimo: https://podimo.com/nl/shows/de-technoloog-bnr/episode/29f6472d-db01-5418-a9a3-6ba63fc17bb3. The episode is embedded with video on https://www.timmermansmedia.nl/over-ons/, https://www.timmermansmedia.nl/diensten/geo/ and https://www.timmermansmedia.com/services/geo/ - Article in BNR Nieuwsradio's Tech & Innovatie section (16 Aug 2026), written by Rosanne Peters: "AI-chatbots veranderen het internet, 'maar SEO blijft belangrijk'" (https://www.bnr.nl/nieuws/tech-innovatie/10608285/ai-chatbots-veranderen-het-internet-maar-seo-blijft-belangrijk), in Dutch. The piece accompanies the episode above and quotes Matt Timmermans, described as a specialist in AI visibility, on the difference between SEO and GEO: a chatbot usually returns a single answer, so a brand that is not in it does not exist. It also covers his advice to start a GEO programme with a baseline measurement per AI model, to study which sources a chatbot picks and why, and to become the expert in a niche because that is how smaller players still surface in AI answers. The article cites the error rates from his study of Dutch brands (Perplexity 9.2%, ChatGPT 2.7%, Gemini 1.1%) and the pattern behind them: on wrong answers, chatbots lean on outdated comparison sites instead of the brand's own site. - Article on Frankwatching (24 Aug 2026), written by Matt Timmermans: "AI vertelt klanten vooral verouderde informatie over merken" (https://www.frankwatching.com/archive/2026/08/24/ai-vertelt-oude-informatie-merken/), in Dutch. The article presents the findings of his study of 1,917 AI answers about 37 Dutch brands: 62% of all errors were outdated information, only 11% genuinely fabricated. Time-sensitive facts (pricing, promotions) failed almost three times as often as stable facts. Error rates: Perplexity 9.2%, ChatGPT 2.7%, Gemini 1.1%. ## Frequently asked questions ### What is generative engine optimization (GEO)? GEO is the discipline of optimising content, structure and authority so that AI engines such as ChatGPT, Claude, Gemini and Perplexity cite a business in their answers. It is the successor to classical SEO for a world in which AI assistants give answers instead of result lists. ### How does GEO differ from SEO? SEO optimises for ranking inside a search result list. GEO optimises for citation inside an AI-generated answer. The technical foundations overlap (crawlability, schema, speed) but GEO requires additional work: brand entity recognition, citation-friendly content structure and presence in sources that LLMs trust. ### Which AI platforms does GEO cover? For most markets these are ChatGPT, Claude, Gemini, Perplexity, Google AI Overviews and Microsoft Copilot. Each platform uses a different mix of training data, retrieval and live web fetch, so optimisation tactics differ per engine. ### How long does GEO take to show results? Usually 8 to 16 weeks before the first structural citations appear. LLMs refresh training data and retrieval indexes on different cycles, so impact compounds as the entity and its sources gain recognition. ### How is AI visibility measured? By running a fixed set of commercial queries through each AI engine each quarter and tracking whether the business is named, how often and with what sentiment. Results are compared to competitors and trended over time. ### Is SEO still relevant alongside GEO? Yes. AI engines source most of their answers from the same web index Google indexes. Good SEO is a precondition for good GEO: without crawlability, schema and authority, LLMs will not pick up the content in the first place. ### What does Timmermans Media do with AI automation? We automate recurring business processes with AI: from lead follow-up and email handling to content production and reporting. The goal is to save time and increase consistency, using AI agents and workflows that connect to a company's existing tools. ### Who is Matt Timmermans? Matt Timmermans is the founder of Timmermans Media. Active in SEO, content and web development since 2018, specialised in Generative Engine Optimization since 2024. Has written for Bitvavo, HEMA, Business Insider NL and Coinmerce among others. ## Contact - Email: info@timmermansmedia.com - Phone: +31 6 83 50 61 31 - Address: Stationsplein 91, 5211BM 's-Hertogenbosch, Netherlands - Hours: Monday to Friday, 09:00 to 17:00 CET ## Sitemap https://www.timmermansmedia.com/sitemap.xml