The Yahoo website as well as other company-owned services such as emails, search etc have not been operating occasionally for some time.
The causes of diacutting of Yahoo are not available at the time of writing, and there are reports of connectivity issues from both the United States and Europe.
While the company has remained silent about the event, services like DownDetector.com show that as far as America is concerned, there is a problem in San Francisco, Los Angeles, Dallas, Seattle and New York. Some parts of Canada also have problems connecting to Yahoo.
As far as Europe is concerned, Yahoo has a problem in France, στην Ελλάδα, στην Ισπανία, στην Ιταλία, στο United Kingdom and in the Netherlands.
In most cases, Yahoo's services do not load at all, and some claim that they can reach the login page, but then can not go any further.
