Based on global retail sales, pizza chain Domino's last week achieved the distinction of becoming the "largest pizza company in the world", besting long-time rival Pizza Hut.

Domino's generated $12.2bn in 2017 sales compared to Pizza Hut's $12.03bn in sales.

While Domino's ascendancy to the global pizza throne was expected given Pizza Hut's late digital start, the milestone is a demonstration of just how important digital can be to businesses that even little more than a decade ago might have seemed far more insulated from digital disruption than others.

Here's a look at some of the key ways Domino's embraced digital and used it to grow.