ULS Technology, a provider of online platforms for conveyancing and financial markets, launched a new website which ranks the performance of estate agencies.Estateagent4me.com aims to help sellers of domestic property to find an estate agent with which to list their property.The group estimates that the average UK house seller could have received an additional £27,456 had their estate agent performed as well as the best."Selling your home is a major thing to do, and can be stressful," said managing director Ben Thompson."By selecting the right agent to suit individual needs and requirements, the seller can have an improved experience, and that's because there are huge differences across estate agents in terms of performance and success rates."Shares were down 1.08% to 55.89p on Monday at 11:05.