Website-as-a-Service (WaaS), or managed Website-as-a-Service, is a business model where a company offers website creation, management, and maintenance as a service. 

This model allows clients to avoid the complexities and time-consuming tasks related to building, updating, and managing a website, much like Software-as-a-Service (SaaS) reduces the need for local software installations.

Here are some key aspects of the managed Website-as-a-Service model:

1. Website Creation: The service provider assists with the creation of the website, including design, development, and launch. The service provider often provides templates and design tools, making it easy for clients to create a website that fits their vision and business needs.
2. Hosting & Domain Management: The service includes website hosting and domain management, meaning the provider takes care of server maintenance, uptime, and the website’s domain name.
3. Content Management: The service often includes an easy-to-use content management system, allowing the client to update content on their site without understanding web development.
4. Updates & Maintenance: The provider will perform routine updates and maintenance on the website to ensure it remains secure, functional, and up-to-date with the latest web technologies and standards. This may also include updating the website design as per changing trends.
5. Security: The service provider handles the website’s security, including SSL certificates, protection against hacks, and privacy measures.
6. Scalability: As your business grows, the provider typically offers options to scale your website to accommodate more traffic or services.
7. Technical Support: The service usually includes technical support to assist with any issues that might come up with the website.
8. SEO & Digital Marketing Tools: Many providers also offer SEO (Search Engine Optimization) services or digital marketing tools to help the client’s website perform better in search engine results, thus driving more traffic to the site.
9. Analytics & Reporting: The provider might also offer integrated analytics tools to help clients understand their website’s performance, user behaviour, and other critical metrics.

By taking the onus of website management off the client’s shoulders, managed Website-as-a-Service allows businesses to focus more on their core operations. This is especially beneficial for small and medium-sized businesses that may lack the resources or technical know-how to manage a website independently.