(Sharecast News) - OnTheMarket saw record traffic to its portal in September, continuing its meteoric growth, both online and on the ground, since its AIM flotation back in February.The property listings outfit recorded an all-time high of 17.4m visits last month - more than three times the number of visits seen when it floated. There was also a record levels of phone and email leads to its estate and letting agent customers.Listing agreements have been signed with more than 11,000 estate and letting agents offices across the UK - more than twice the number in February.OnTheMarket told investors the growth in its agency branch base was predominantly due to offering free listings under short-term introductory trial offers, with a view to converting these to full tariff contracts when the value of its offering has been demonstrated.Chief executive Ian Springett, said: "In less than eight months since our IPO, we have doubled the number of agent offices contracted to list on OTM, trebled the number of visits made to it and quadrupled the number of email and telephone leads delivered from it to agents.""Our strategy to grow rapidly the scale of the portal is working and these latest milestones indicate that more property-seekers using OTM and viewing more properties - many of which are listed with us on a new and exclusive basis - is a recipe for generating more value to agents."As of 0855 BST, OTM shares had lifted 0.31% to 144.44p.