Tengine is a web server which is based on the Nginx HTTP server.

Alibaba Cloud CDN is a global network of servers designed to deliver high-performance, low-latency content to users around the world. It is a cloud-based service provided by Alibaba Cloud, a subsidiary of the Alibaba Group, that enables businesses to accelerate the delivery of their web content, including images, videos, and static files, to end-users.

Amap is a digital cartography platform providing detailed geographic data, navigation, and location-based services across Asian regions.

Express is a web application framework for Node.js, released as free and open-source software under the MIT License. It is designed for building web applications and APIs.

Node.js is an open-source, cross-platform, JavaScript runtime environment that executes JavaScript code outside a web browser.

Alibaba Cloud Object Storage Service (OSS) is a cloud-based object storage service provided by Alibaba Cloud, which allows users to store and access large amounts of data in the cloud.