Do we have any search query which tells dashboards not being used since more than 30 days?

[manishmittal12]

We are looking for some stats which tell dashboards name that are not being used since last 30 days for some clean up. as dashboards are piled upto more than 300-400.

[Azeemering]

Try:

index=_internal sourcetype=splunkd_ui_access method=post ui/views
  | table user, req_time, file 
  | rename file as dashboard req_time as editTime

or

index=_internal user!="-"  sourcetype=splunkd_ui_access "en-US/app"  | rex field=referer "en-US/app/(?<app>[^/]+)/(?<dashboard>[^?/\s]+)" | search  dashboard!="job_management" dashboard!="dbinfo" dashboard!="*en-US" dashboard!="search" dashboard!="home" dashboard!="alerts" dashboard!="dashboards" dashboard!="reports" dashboard!="report" | bucket _time span=1d | stats dc(dashboard) as c by dashboard user _time