IONOS is a digital services provider helping individuals and businesses establish and operate an online presence. Its offerings include domain registration and management, professional email and office tools, website creation, online stores, WordPress and other web hosting, virtual and dedicated servers, and cloud infrastructure. Customers can use website and app builders, arrange professional website creation, and access e-commerce tools for setting up stores, adding integrations and processing online payments.

For everyday business operations, IONOS provides collaboration and cloud storage options, email marketing, backup and security products, and tools for managing domains and websites. Its marketing services include support with search visibility, social media campaigns, reputation management and Google Ads. The portfolio also features AI-powered assistants for calls, website enquiries and email, as well as an AI platform offering language and image-generation models and GPU resources for AI workloads.

IONOS serves technical teams with cloud computing, storage, databases, networking, monitoring and managed Kubernetes. Its products cater to users ranging from those creating their first website to organizations managing advanced infrastructure.