from Oxford University Press:
As communicated in previous messages, Oxford Language Dictionaries Online has migrated to its new home at OxfordDictionaries.com. As part of the migration process both the old and new sites have been running alongside each other to help smoothly transition users.
From April 1st 2015 the previous site at oxfordlanguagedictionaries.com will be switched off and will automatically redirect to Oxford Dictionaries.
To ensure that access continues for your institution please see our FAQ which provides further information on any changes you or your library administrator may need to make.