WFS, or Web Feature Service, is a standard protocol used to access and manipulate geospatial features over the internet. It allows users to request specific geographic data, such as points, lines, and polygons, from a server. This data can be used in various applications, including mapping and geographic information systems (GIS). WFS is part of the Open Geospatial Consortium (OGC) standards, which aim to promote interoperability in geospatial data. By using WFS, developers can integrate real-time geographic information into their applications, enabling better decision-making and analysis based on spatial data.