Sales at Domino’s were up 19% in the three months to September, compared to the same period in 2014, thanks to one simple change to the way that they do business.

The company grew its online ordering business – through its website, an app and even the Apple Watch. So far this year, three-quarters of Domino pizza orders were made online and half of those orders have come through the company’s app or digital devices.

That’s boosted sales by 19 per cent across the group and 20 per cent in the UK exclusively, to £214.5 million in sales across the group, £200 million of which were in the UK.

Domino’s said good summer sales were helped by cooler weather, which saw people shunning barbeques and ordering pizza instead.

Domino’s mobile technology puts it far ahead of rivals. Last year it introduced a Siri-like voice recognition system to take orders through its app and earlier this year it introduced ordering via Pebble and Android smart watches.