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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

Meta to overtake Google in advertising revenue by 2026: what this means for your ad strategy

Google’s reign as the advertising giant has come to an end. For the first time since the advent of digital advertising as we know it, Meta is set to overtake Google in advertising revenue

Hyper-personalisation with AI in 2026: the strategy that growing brands are already using

How to apply hyper-personalisation with AI in digital marketing in 2026: real cases, key DES 2026 data and a practical roadmap to get started without dying in the

Agentic marketing: why AI agents are redefining how campaigns are executed in 2026

Two years ago we talked about generative AI as another tool in the marketer's belt. Today the conversation is different. There is no longer a discussion in the industry about whether the

Google AI Mode with Gemini 3.5 Flash: how digital marketing changes after Google I/O 2026

On 19 May 2026, Google made Gemini 3.5 Flash the default AI Mode model. We review what changes for SEO, Google Ads and strategy.

AI Max Google Ads: what's changing in September 2026 and how to prepare your campaigns

Google migrates DSA to AI Max for Search in September 2026. Official timeline, performance data and practical checklist to prepare your campaigns with Vandelay.

llms.txt: the file that teaches ChatGPT, Claude and Perplexity how to talk about your brand

The llms.txt file has crept into every technical marketing conversation in 2026. We tell you what it is, what the data says about its real impact and how to create it well.
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