17CE, developed by Bo Li, is a professional free website performance monitoring platform tailored for iPhone users. Launched in 2011, it has conducted over millions of speed tests for its users. The app's primary functions include testing network speed and latency, monitoring website access with features like GET, PING, DIG, DNS, and CDN, providing domain/IP command tests such as GET, PING, TraceRT, DNS, CDN, and SSH under Tools, and displaying local test records and details under My section.

Moreover, 17CE offers a unique feature called "Earn Money While Idle." By enabling this feature, your device will receive speed test tasks from the server. Your device acts as a client to complete these tasks, and upon completion, you receive rewards. To withdraw your earnings, you can bind your account with the official WeChat public account '17ce.'