Yahoo said on Tuesday it was considering “strategic options” for Kelkoo, including a possible sale of the online shopping comparison service that it acquired only three-and-a-half years ago.

The internet company, which has been re-evaluating its business under its returned chief executive, paid €475m ($672m) in cash for Paris-based Kelkoo in March 2004, as part of a push to bolster its European operations. However, it acknowledged on Tuesday that it had not progressed as expected.