Klaviyo is an owned marketing platform accelerating revenue for online businesses using your channels (email, SMS, in-app notifications, and web). It enables you to leverage your owned marketing channels by making it easy to store, access, analyse and use transactional and behavioural data to power highly targeted customer and prospect communications. With its custom web tracking technology, you can segment audiences and target triggered campaigns effectively and automatically based on collected customer behavioural and transactional data. Klaviyo also allows users to measure the performance of your marketing campaigns by facilitating reporting and meaningful analysis with crucial metrics. You can compare current and past campaign performance, view real-time activity streams and add, edit or remove other metric charts. It supports integration with multiple eCommerce, payment processing and POS software to gather and utilise customer-driven data. Klaviyo also has an open API that allows users to add custom eCommerce integrations.