SEO Blog Posts | Castle

SEO

Marketing

Ecommerce marketing in 2026, why traffic alone no longer converts

A realistic look at ecommerce marketing in 2026, why traffic alone no longer converts, and how UK ecommerce brands can grow sustainably.

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GEO

SEO in 2026, what still works, what no longer does, and how search has really changed

An in-depth look at SEO in 2026, what still works, what no longer does, and how search has really changed for UK businesses.

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GEO

How digital marketing actually works in 2026, and why most businesses are still using outdated strategies

How digital marketing actually works in 2026, including SEO, paid media, ecommerce, AI search, and why many UK businesses are still using outdated strategies.

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Marketing

Why your marketing stopped working in 2026 (and what actually fixes it)

Why your marketing stopped working in 2026, from SEO and paid ads to social and search behaviour, and what actually fixes it for sustainable growth.

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Featured

GEO and SEO in 2026: how search really works now, and why most brands are already behind

An in-depth guide to GEO and SEO in 2026, explaining how AI search works, why rankings are changing, and how brands can stay visible in generative results.

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GEO

How do I find a trustworthy full-service marketing agency?

How to find a trustworthy full-service marketing agency, what to look for, red flags to avoid, and how to choose a partner that delivers real, long-term results.

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Affiliate

Why the fragmented agency model is quietly breaking down in 2026

A detailed analysis of why fragmented marketing agency models are breaking down in 2026, and how social media, paid advertising, SEO, and GEO increasingly require integrated, full-service strategy across the UK.

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GEO

How to take advantage of GEO in 2026

GEO is quickly replacing SEO as the real driver of online visibility. Instead of chasing search rankings, brands now need to train AI systems to recognise their expertise, quote their answers, and surface their content across Google SGE, ChatGPT, and Perplexity. The brands that understand this shift early will dominate AI search in 2026, because GEO rewards clarity, consistency, and authority. This guide explains how to build a footprint that AI trusts and how to position your business so that generative engines choose you every time a user asks a question.

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Marketing

Why GEO Matters More Than SEO in 2026

GEO is the shift from ranking on Google to appearing in AI generated answers. Instead of competing for a place on a results page, brands now compete to be included in the single response people receive when they ask ChatGPT, Meta AI or Perplexity a question. If AI cannot understand who you are, which market you serve or why you are credible, you will be excluded. GEO fixes that by clarifying your identity, removing digital noise and training AI models to recognise your expertise. It is the difference between being discoverable and being invisible in 2026.

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