Betfair suffered a brief outage this morning – one of several glitches the site has suffered in recent weeks.
The problems at the betting exchange have alarmed customers, who could get stuck with an open position which they cannot close.
An unusually helpful spokeswoman at Betfair explained the problems were related to moving the site's data centres to Ireland earlier in the year.
She said: "Because Betfair works 24 hours a day, seven days a week, we can't just put updates on at night. And because of the move to Dublin we had to put a freeze on upgrades to the site.
"We did anticipate some wrinkles as we dealt with the backlog of improvements after the move. We've had about 30 releases to push through – a really intense period of activity – and a short window to get them done before spring racing starts."
She said no one had felt the problems as keenly as Betfair staff but that the betting exchange had picked its moment as best it could.
Betfair is now licensed in Gibraltar but remains headquartered in Britain for tax purposes – it employs 1,200 people in the UK. It hopes to take its betting exchange business to the US soon. ®