How accurate is the search/tweets endpoint?



The description of the endpoint says that not all tweets are indexed and available. I am only wanting to search the last 24 hours, so I am not worried about the expiration time of the indexed tweets. , but I’ve also heard that at most you can only get up to 1500 statuses from a query. Is this limitation true? If I only want to search tweets within the past 24 hours, will the tweets be fully indexed? (I am only using “to:user_name” predicates)


As per examples listed in API search and website search mismatch that API is not at all reliable/accurate. It appears to be a best-effort sort of thing, probably optimized to reduce system load?