Updated on 12 November 2026 by Nicolas Finet, CEO of Sortlist. We have rewritten this guide for UK site owners and marketers: what Google SGE was, how it became AI Overviews and AI Mode, what has happened in the UK, what the evidence says about traffic and how to adapt your content and SEO. The earlier version described SGE as an experiment that was still being tested; the feature has moved on, so we replaced the speculation with what is known and what to do.
Google SGE (Search Generative Experience) was Google's 2023 experiment that added AI-generated summaries to search results; the technology now appears in search as AI Overviews, and a separate conversational tab called AI Mode. AI Mode launched in the UK on 29 July 2025 as a tab in Google Search and in the Google app. It breaks questions into subtopics, runs several searches at once and draws on more sources per query. Google confirmed at the time that there would be no ads in AI Mode in the UK.
Key takeaways
- SGE was the experimental name; AI Overviews and AI Mode are the live features. Check Google's current documentation for names, availability and eligibility.
- Publishers report falling click-through where AI summaries appear, but figures vary widely (reports range from about 25% year-on-year referral declines to 50% to 80% for some publishers) and Google does not separate AI traffic in reports, so treat estimates cautiously.
- Classic SEO fundamentals still matter: helpful, accurate, well-structured content with clear authorship and sources.
- Aim to be cited as a source: answer questions directly, use clear headings, show expertise and keep information current.
- A 2026 report says Google opened a UK-pilot opt-out for AI features via Search Console; verify its availability and effects before using it.
How AI search differs from traditional search
| Traditional results | AI Overviews and AI Mode | |
|---|---|---|
| Output | A ranked list of links with snippets | A generated summary with links to sources, and in AI Mode a conversational follow-up experience |
| Query style | Short keywords | Longer, conversational questions and follow-ups |
| How it works | Crawling, indexing, ranking by relevance and quality signals | The same index plus a language model that synthesises answers; AI Mode issues multiple related searches |
| User behaviour | Click a result | May get the answer without clicking; some click cited sources |
| Measurement | Impressions, clicks and position in Search Console | AI traffic is not reported separately, so it is hard to isolate |
What we know about the impact on traffic
- Measurement is hard. Search Console does not separate AI Overview or AI Mode traffic from other Google traffic, so publishers track overall referral trends.
- Estimates differ. Industry reports cite referral declines of around 25% year on year for major publishers in one pilot, and agencies claim 50% to 80% drops for some sites. Some figures come from low-authority sources and are not independently verified.
- Industry reaction. UK publisher groups have criticised the changes, and complaints about AI Overviews have been filed with competition authorities, including the UK's Competition and Markets Authority.
- Winners and losers. Informational queries (definitions, how-to, quick facts) are most exposed. Transactional and local queries, and brands people search for by name, are generally less affected.
Plan on the basis that some informational clicks will fall, and invest in queries where users still need to click: comparisons, tools, local services, products and trust-heavy decisions.
How to adapt your SEO and content
- Answer questions directly. Put a clear, accurate answer in the first paragraph under a descriptive heading, then add depth.
- Show expertise and trust. Named authors with credentials, original data, citations and up-to-date information.
- Structure for extraction. Use clear headings, lists, tables and concise definitions that a system can quote correctly.
- Cover topics, not just keywords. AI Mode expands queries into subtopics; content that covers related questions can be cited more often.
- Add what AI cannot. First-hand experience, case studies, calculators, original research and opinions people want to read in full.
- Keep technical SEO strong. Crawlability, speed, structured data and mobile experience. See artificial intelligence in SEO.
- Strengthen brand signals. Branded search, reviews, mentions and a consistent presence help you be chosen when people ask for recommendations.
- Measure differently. Track branded searches, conversions, assisted conversions and landing-page engagement, not just clicks from informational queries.
Sortlist editorial note: be wary of claims that a specific trick "optimises" for AI Overviews. Google has said that its standard SEO guidance applies, and the systems change frequently. Focus on being the clearest and most trustworthy source on your topic.
Sortlist editorial team
Risks and limitations of AI search
- Accuracy. Generated summaries can be wrong or oversimplify; users should check sources.
- Attribution. Citations may not send meaningful traffic to the sources used.
- Bias and consolidation. A few dominant sources may be cited repeatedly.
- Regulation. UK and EU authorities are examining how AI features affect publishers and competition, so rules and controls may change.
Practical checklist for UK businesses
- Audit top landing pages: which queries are informational and likely to be answered in AI summaries?
- Update key pages with clear answers, current facts and visible author and date information.
- Create content for decisions: pricing guides, comparisons, buyer checklists and local pages.
- Check Search Console for changes in impressions versus clicks on informational pages.
- Review your robots and AI-control settings, and read Google's guidance on controls before changing them.
- Monitor conversions and revenue rather than traffic alone.
For paid search implications see our guide to Google Gemini and advertising.
Frequently asked questions
Is SGE the same as AI Overviews?
SGE was the experimental name for Google's AI-generated search summaries. Features that came from it now appear as AI Overviews.
Is AI Mode available in the UK?
Yes. It launched in the UK on 29 July 2025.
Does AI search kill SEO?
No. It changes where value comes from. Content still needs to be discoverable, trusted and useful, but some informational clicks decline.
Can I opt out of AI Overviews?
A UK pilot opt-out was reported in 2026, but check Google's current guidance, since controls and consequences can change.
Will there be ads in AI Mode in the UK?
Google said at launch there would be none in the UK; check current announcements, as this may change.
Need help adapting your SEO? Post your project on Sortlist and compare UK SEO agencies for free.
Sources: Press Gazette, Google AI Mode goes live in the UK, Press Gazette, what the AI Mode push means for publishers, Tech.eu, Google launches AI Mode in UK search, Decision Marketing, Google AI Mode. Traffic-impact figures are estimates from industry sources; check Google's documentation for current features and controls.
