List No-Result Searches

List the most frequent searches that returned nothing, with the no-result rate in total and per day.

Authentication

AuthorizationBearer

A search key, issued by Captain. Sent as Authorization: Bearer <key>.

Path parameters

indexstringRequiredformat: "^[a-z0-9][a-z0-9_-]{0,47}$"
index name

Query parameters

limitintegerOptional1-1000Defaults to 10

list rows to return (the list only: counts and rates cover every row)

offsetintegerOptional>=0Defaults to 0
start_datestringOptionalformat: "date"

first day, UTC, inclusive (YYYY-MM-DD). Default: 6 days before end_date (a 7-day window)

end_datestringOptionalformat: "date"

last day, UTC, inclusive (YYYY-MM-DD). Default: today. At most 366 days from start_date

Response

report
start_datestringformat: "date"
end_datestringformat: "date"
ratedouble or null

no_result_count / count

countinteger
searches with query text
no_result_countinteger
of those, searches that found nothing
searcheslist of objects
dateslist of objects

every day of the window, oldest first; rate is null on a day with nothing to divide by

© 2026 Captain