SEO, search engine optimisation, is the practice of helping search engines understand your content and helping users find your site and decide whether to visit, now applied across Google's blue links, AI Overviews, ChatGPT citations and every other surface that connects a query to a result.
Across UC's 146-article Australian corpus audit, the median Australian site scored 51/100 against our AI-search rubric and only 1% of audited sites reached the 80+ Strong band; UC's own articles average 84/100. The gap between table-stakes execution and citation-worthy execution is wider than most owners assume.
Google's own definition puts it plainly: SEO "is about helping search engines understand your content, and helping users find your site and make a decision about whether they should visit your site through a search engine." That job hasn't changed. What has changed is the number of surfaces it applies to.
For most of the 2010s, search meant one thing: a page of ten blue links on Google. The discipline was built around that surface, keyword research, backlinks, technical crawlability, on-page structure. Those fundamentals still hold. What's expanded is the list of places where the same question gets answered.
Google now generates an AI Overview above the links for many queries. ChatGPT has its own search product. Perplexity and a growing list of AI tools answer questions from live web sources and name the businesses they cite. These aren't replacements for SEO, they're the new surfaces SEO needs to reach. Answer Engine Optimisation and Generative Engine Optimisation sit inside SEO as the methods for those surfaces. AI Search Optimisation is the umbrella term for the whole extended set.
The traffic moving to those surfaces is measurable. Gartner forecasts traditional search volume will fall 25% by 2026 as users shift to AI chatbots. Semrush's 17-month analysis found outbound referral traffic from ChatGPT grew 206% year-on-year between January 2025 and January 2026, with the top 10 domains taking more than 30% of all referrals. A business optimising only for Google's blue links is now absent from a growing share of the queries that matter.
Here is what that looks like. An Australian conveyancing firm that ranks on page one for "conveyancer Melbourne" may still be invisible when a buyer asks ChatGPT "who should I use for conveyancing in Melbourne?" The AI answer pulls from pages that answer that question directly, with clear location signals and schema markup. SEO fundamentals, authority, crawlability, relevant content, get the firm into the pool. The AI-surface work, extractable answers, consistent entity signals, structured data, determines whether it appears in the citation. Both are SEO; neither is optional.
Our SEO & AI Visibility service covers both layers.