ChatGPT search now uses the site:operator at scale
ChatGPT search just got smarter about finding answers on specific sites — and that changes how you'll query it.
Why it matters
ChatGPT's search capability now supports the site: operator at scale, enabling practitioners to constrain searches to specific domains. This is a product feature maturation that shifts how users interact with the search layer—more precision, fewer hallucinations sourced from unreliable sites.
The key facts
8 to knowChatGPT search now supports site: operator
Feature deployed at scale (not limited rollout)
Enables domain-constrained search queries
Published Aug 20, 2026
Improves search precision and source reliability
ChatGPT search now supports site: operator at scale
Enables domain-specific search filtering
Improves precision for practitioners who rely on targeted research
Go to the source
Simon Willisonsimonwillison.net