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Serkan Sayar
AUTHOR

Serkan Sayar

Co-founder · GEO and SEO specialist
LinkedIn ↗The Messagency team

GEO and SEO specialist and an electrical and electronics engineer, working in SEO since 2012. Helps brands get found and recommended on ChatGPT, Google AI Overviews, Google AI Mode and Google, looking at each brand the way these engines do: the Google Business Profile, the website, social media and reviews must tell one clear, accurate story.

One of the three engineers who founded Messagency in March 2026. Writes on this blog about GEO (Generative Engine Optimization) and SEO: how ChatGPT, Google AI Overviews, Google AI Mode and Google pick the brands they show, and what a business in Portugal can do to be one of them.

Education: Electrical and Electronics Engineering, Istanbul University. Languages: English, Turkish and Portuguese.

Writes about

  • GEO (Generative Engine Optimization)
  • SEO
  • Visibility on ChatGPT, Google AI Overviews and Google AI Mode
  • Google Business Profile
  • Local search in Portugal
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Posts by Serkan Sayar

GEO

What is GEO? Showing up in ChatGPT and Google AI Overviews

What is GEO? How your brand gets into the answers of ChatGPT, Google AI Overviews and Google AI Mode, and how it differs from SEO.
SEO

Is SEO dead? No, the rules changed

Is SEO dead? No, AI search changed the yardstick. What still works and what is now wasted effort while Google and AI answers live side by side.
AI ASSISTANT

AI assistant for makeup artists: WhatsApp and Instagram

AI assistant for makeup artists: books clients, asks for the deposit, manages bridal trials and events on WhatsApp and Instagram. Features and prices.
PARTNER

AI Assistant partner program: requirements and earnings

AI Assistant partner program for creators: application requirements, commission rates, payout day and rules, with every number in one post.

Posts by city

GEO AND SEO

GEO and SEO consulting in Barreiro: chosen close to home

GEO and SEO consulting in Barreiro: win local customers on Google, AI Overviews, AI Mode and ChatGPT before Lisbon does, with a top 3 guarantee.
GEO AND SEO

GEO and SEO consulting in Faro for ChatGPT and AI Overviews

GEO and SEO consulting in Faro: the Portuguese and English demand your business is missing on Google, in ChatGPT, in Google AI Overviews and in Google AI Mode, and how to win it.
GEO AND SEO

GEO and SEO consulting in Leiria: industry and the city

GEO and SEO consulting in Leiria: top 3 Google guarantee in 6 months, for industrial exporters and local service businesses in the city.
GEO AND SEO

GEO and SEO consulting in Santarém for ChatGPT and Google

GEO and SEO consulting in Santarém: farm buyers and local customers ask ChatGPT, Google AI Overviews and Google AI Mode. Who answers them today?
GEO AND SEO

GEO and SEO consulting in Coimbra for ChatGPT and AI Mode

GEO and SEO consulting in Coimbra for healthcare and education: how to show up in ChatGPT, Google AI Overviews and Google AI Mode when newcomers search.
GEO AND SEO

GEO and SEO consulting in Viseu, from Google to ChatGPT

GEO and SEO consulting in Viseu: the local demand your business isn't getting yet on Google, in ChatGPT, in Google AI Overviews and in Google AI Mode.
GEO AND SEO

GEO and SEO consulting in Braga: for a young, mobile city

GEO and SEO consulting in Braga: top 3 Google guarantee in 6 months, for a three-language market of Portuguese, English and Spanish searches.
GEO AND SEO

GEO and SEO consulting in Aveiro: visitors and exporters

GEO and SEO consulting in Aveiro: top 3 Google guarantee in 6 months, for tourism businesses and industrial exporters in the municipality.
GEO AND SEO

GEO and SEO consulting in Setúbal: ChatGPT and Google

GEO and SEO consulting in Setúbal: the demand your business misses on Google, AI Overviews, AI Mode and ChatGPT, with a top 3 Google guarantee.
GEO AND SEO

GEO and SEO consulting in Porto for ChatGPT and Google

GEO and SEO consulting in Porto: the demand your business is missing on Google, AI Overviews, AI Mode and ChatGPT, and how to win it.
GEO AND SEO

GEO agency in Lisbon: GEO and SEO for ChatGPT and Google

GEO and SEO consulting in Lisbon: first-page Google guarantee in 6 months, for B2B companies and businesses with two market languages.

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