The domain toystoteach.com is suitable for a subscription-based service delivering curated educational toys to subscribers' doorstep because it clearly indicates that the website focuses on toys specifically designed for educational purposes. It instantly conveys the purpose and target audience of the website. Furthermore, the domain is concise, easy to remember, and reflects the main selling point of the service, which is providing educational toys. It can potentially attract subscribers who are specifically looking for this type of service. However, the domain may not be suitable for an online marketplace for teachers to buy and sell used educational toys or a virtual classroom platform. These concepts require different functionalities and purposes, so a more fitting domain name would be advisable in those cases.