An overlay network is a computer network that is built on top of another network. Overlays are used for a variety of purposes, including increasing network performance and reliability, and enabling new applications. Overlays are created by encapsulating data in a special format and adding a header that includes information about the destination of the data. When an overlay node receives data, it uses the information in the header to forward the data to the appropriate destination. Overlays can be used to improve the performance of a network by providing a higher degree of flexibility in the routing of data. They can also be used to improve the reliability of a network by providing alternative paths for data to follow in the event of a failure. New applications can be built on top of an overlay network. For example, a Distributed Hash Table (DHT) can be used to store data in a decentralized manner. Overlays can also be used to create virtual private networks (VPNs). Overlays are typically implemented in software, but they can also be implemented in hardware.
Overlays services are a type of computer networking service that allows two or more computer networks to communicate with each other. Overlays services can be used to connect two or more networks that use different protocols, or to connect two or more networks that are geographically separated.
Overlays are a great way to add extra features to your website or application. They can be used to add social media buttons, forms, or even advertisements. Overlays can be a great way to increase engagement and conversions on your site.