Search is changing fast. Tools like ChatGPT and Google’s AI Overviews are replacing old-school SEO tactics with AI-generated results, delivering answers before anyone clicks a link. This shift is reshaping how businesses get found online. In this post, we’ll explore why traditional SEO is being outpaced by AI Search Optimisation (AI SEO), what strategies brands need to adopt, and how Codex Web Development can help your business adapt and thrive in this new era.

The End of Click‑Driven SEO?

Search has entered a new era. AI platforms like ChatGPT, Google’s Gemini-powered AI Mode, Anthropic Claude, and Perplexity are now providing instant, AI-generated answers, often without users clicking through to websites. Google’s new AI Overviews, for example, summarise entire queries right at the top of the page, often citing only a handful of sources.

This means fewer clicks for websites, even those that rank well. Some publishers have seen up to 80% drop in traffic due to AI answers affecting their visibility¹.

Traditional SEO metrics – rankings, CTR, even backlinks are no longer enough. Businesses must now fight to become the source AI references in its answers, not just a search result².

What Is AI Optimisation?

AI SEO, AEO, and GEO Explained

Welcome to the new lingo:

AI SEO: Optimising content for Large Language Models (LLMs) like ChatGPT and Gemini. This includes writing content that’s clear, structured, and semantically rich.
AEO (Answer Engine Optimisation): A shift from ranking pages to answering questions. This strategy focuses on providing direct, authoritative responses³.
GEO (Generative Engine Optimisation): Creating content that feeds into AI-generated experiences. Think structured metadata, video transcripts, and even AI‑readable llms.txt files that help engines crawl your site⁴.

“In the age of AI search, we’re optimising for engines that don’t show your site – just your words.”

Why This Shift Matters: Data-Driven Impact

Here’s what the data shows:

Google’s AI Mode has caused clickthrough rates to plummet, with sites in position #1 losing up to 30% of their traffic overnight⁴.

One report found that 42% of users now prefer AI-generated summaries when researching products or services⁵.

Real-World Case Study: Intuit Mailchimp’s Pivot

When Intuit saw their Mailchimp pages losing traffic, they acted fast. They implemented:

Structured schema across landing pages
Optimised blog posts for FAQs and featured snippets
Created YouTube videos with transcriptions
Added structured product data for Google AI’s context models

As a result, they retained citation presence inside AI Overviews – even as rankings fluctuated.

What Should Businesses Do Right Now?

1. Optimise for AI Understanding – Not Just Keywords

Instead of stuffing pages with keywords, focus on clarity and context:

Write in clear, conversational English – like you’re answering a question directly.
Break your content into scannable, question-and-answer formats (e.g. FAQs or help guides).
Use headings that reflect real user intent, not just search phrases.

2. Implement Structured Data

Help AI tools understand and prioritise your content:

Add schema markup for products, services, FAQs, reviews, and local business details.
Use emerging protocols like llms.txt to guide large language model crawlers (e.g. ChatGPT, Gemini).
Ensure your website is fast, mobile-friendly, and free from crawl errors.

3. Build Trust and Authority Signals

AI systems favour content that appears credible and expert-led:

Clearly identify the author or source of content.
Link to trustworthy, cited sources wherever possible.
Encourage and highlight social proof – customer reviews, media mentions, and brand recognition.

Get your business listed on key UK directories (like Yell, Companies House, Trustpilot), contribute to relevant publications, and publish expert content with original data or insights to build topical authority.

4. Focus on Entity Optimisation

AI models don’t just index keywords – they understand entities (people, places, organisations, topics):

Ensure your business is correctly and consistently represented across the web (Google Business Profile, social media, directories).
Connect your brand to relevant topics and niches – link related content internally and externally.
Build out detailed pages that clearly define your services, expertise, and relevance.

Is Traditional SEO Dead?

Not entirely, but it’s being redefined. Here’s a balanced view:

The Counterpoints

Google still processes trillions of traditional searches.
Many local and eCommerce searches (e.g., “Thai restaurant near me”) still rely on maps and links.
AI-generated answers are not always accurate, and users may still want clickable sources^2,5.

The Catch?

Even if traditional SEO still works, the top-of-funnel awareness has shifted. More and more, AI tools mediate what gets seen first^2,3.

What Codex Web Development Is Doing Differently

At Codex Web Development, we’re not just watching the change, we’re building for it.

We help SEO clients by:

Auditing for AI visibility (structured data, semantic clarity, crawl accessibility)
Creating clustered content hubs built around question sets—not just keywords
Ensuring compatibility with AI platforms through llms.txt, schema, and speed optimisation
Tracking AI citations and brand presence across LLMs, not just Google Analytics

Conclusion: The Future of SEO is AI‑First

In a world where AI tools answer before users click, traditional SEO must evolve. From Google’s AI Overviews to ChatGPT’s conversational summaries, your brand must become the answe, not just part of the search result.

AI optimisation (AI‑SEO, AEO, GEO) is the strategy that ensures your business stays discoverable, trusted, and cited in an AI-dominated internet.

References

The Guardian (2025) – AI summaries cause devastating drop in audiences.
Wall Street Journal (2025) – AI Has Upended the Search Game.
Business Insider (2025) – Forget SEO. The hot new thing is AEO.
iPullRank (2024–2025) – How Google AI Mode Works.
Bain & Company via WSJ – AI Search Behaviour Report.
Forbes (2025) – SEO is Dead. Long Live GEO.

Why AI Optimisation Is Replacing Traditional SEO and What That Means for Your Business