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Welcome to our knowledge centre. We share the same data-driven strategies we use for our clients, helping you connect with your audience and turn every action into real growth.

Vandelay Services: SEO, GEO, Google Ads, social media and web design

How to choose a digital marketing agency in Barcelona: 2026 guide + checklist

Learn how to choose a digital marketing agency in Barcelona with a checklist of 10 criteria, the questions you should ask before hiring, and the red flags to watch out for

How much does a digital marketing agency in Barcelona cost (2026): prices and how to choose

How much does it cost to hire a digital marketing agency in Barcelona in 2026: price ranges by service, what each one includes, and how to choose the right agency for your business.

New Google Ads terms: AI can now generate your adverts (and you remain responsible)

The new Google Ads terms and conditions came into force on 1 July 2026 and authorise AI to format, select and generate your adverts. We explain this, with

Local SEO with AI in 2026: how to get ChatGPT and Google AI Mode to recommend your business

Local SEO using AI is no longer just a theory: 45% of consumers are asking AI tools for recommendations on local businesses, compared with 6% a

AI-powered influencer marketing in 2026: what changes when you work with human and virtual creators

AI-powered influencer marketing is booming: a sector that is set to reach nearly 32,550 million dollars in 2025, according to Influencer Marketing Hub, with virtual creators already

Voice search in 2026: how to optimise your marketing for Alexa, Google Assistant and AI

Voice search already accounts for around 27% of queries, and the majority are local. We’ll show you, with verifiable data, how to optimise your marketing and SEO to
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