log file
noun[C]
ITukusacomputerfilethatcontainsarecordof allactionsthat have been done on acomputer, awebsite, etc.:
Manyonlinenewsorganizations'logfilesshow thatphotogalleriesare amongtheirmostpopulardestinations.
Thesiteadministratorcanlookat thelogfiletodeterminewhen theerroroccurred.