An online bullion dealer has paid a massive GBP600,000 for the gold.co.uk web address - the highest ever deal for a UK domain name. City entrepreneur Rob Halliday-Stein broke the bank mashing the previous most expensive UK domain name Cruise.co.uk by GBP40,000. BullionByPost was founded by Mr Halliday-Stern with just £10,000 and is now the UK’s number one online dealer with sales of over £100 million a year.