Saved search
A persisted marketplace query that fires notifications when fresh listings match. Captures intent that would otherwise evaporate when the visitor closes the tab.
Filter shape
Keyword + TLD + max price + min views. A ‘follow .ai’ is just a saved search with q empty + tld=’ai’.
Cadence
Deepnom’s matcher runs daily. The summary notification lists count + top-3 names; click through for the full match list.