Watch: SRO & Grounding Snippets
Selection Rate Optimization (SRO) is a new discipline focused on visibility in AI-powered search by measuring how often content is selected for grounding.
Transcript
Traditional search engine optimization is changing. It is no longer enough to rank number one on a search page. In the era of artificial intelligence, a new discipline has emerged called Selection Rate Optimization, or SRO.
When you ask an AI assistant a question, it does not just show your website. It retrieves a few sources and extracts specific sentences to build its answer. This process is called grounding. If the AI retrieves your page but does not actually select and use your sentences, your brand remains invisible.
Research shows that Google uses exact, word-for-word sentences from your pages. But there is a catch. For any given query, the AI operates on a strict budget of about two thousand words, shared across all sources. The higher you rank, the more of that budget you get. However, on average, only about a third of a page's content actually survives this filter.
This means that long, wordy pages are no longer effective. Instead, content density is everything. A tight, eight-hundred-word article can see over half its content used, while a massive four-thousand-word guide sees almost all of its text discarded.
To win in AI search, front-load your most important facts. Write clear, self-contained sentences that can stand alone as direct answers, and build a strong brand reputation that the AI trusts.