Old-guard SEO is a ghost at the feast. While many UK agencies are still debating the merits of programmatic link building or the ideal keyword density, the ground has irrevocably shifted beneath their feet. Google’s AI Overviews, initially a novelty, are now the frontline of information retrieval. This is not another algorithm update; it is a fundamental restructuring of how users, and now machines, find what they are looking for. By 2026, the concept of ranking on a page of ten blue links will feel as antiquated as the Yellow Pages.
The future is not about optimising for search engines. It is about optimising for the agents that use them.
For years, we targeted personas. We built detailed profiles of ‘Marketing Mary’ or ‘Finance Frank’. That era is over. The new target audience is a swarm of autonomous, goal-oriented AI agents, dispatched by users to find, evaluate, and even purchase on their behalf. An agent’s ‘needs’ are not emotional; they are computational. They parse APIs, evaluate structured data, and prioritise sources based on demonstrable authority and utility, not brand sentiment.
A recent study by UCL’s AI Centre found that agent-led queries are already forming a nascent, but rapidly growing, segment of UK search traffic. Their analysis of anonymised ISP data suggests that by early 2025, as much as 5% of complex, multi-stage queries could be initiated by agents. These are not simple questions like "what is the weather?". They are commands like "Find me the best-rated sushi restaurant within a 15-minute walk of Covent Garden that has a gluten-free menu, accepts Amex, and has a table for two available at 7 pm tonight."
No single website, as they are traditionally built, can answer that query in one go. An AI agent, however, can synthesise data from Google Maps, TripAdvisor, OpenTable, and the restaurant's own (hopefully well-structured) website to provide a single, definitive answer. The marketing challenge is no longer about visibility on a search engine results page (SERP), but about being the most legible, reliable, and useful data source for these agents.
The obsession with keywords is the first sacred cow that must be slain. While foundational keyword research still has a place, its primacy is over. The new core competency is ontology management. Your brand’s digital presence must be structured as a comprehensive knowledge graph.
This means going far beyond basic schema markup. It involves defining every entity associated with your business — products, services, people, locations, events — and mapping the relationships between them in a machine-readable format. Think of it as building a private wikipedia for your brand.
Take a UK retailer like John Lewis. Their current SEO strategy is excellent by legacy standards. But in an agentic future, a user