XIU2

XIU2 is an independent developer whose open-source utilities focus on network optimization and streamlined workflows for power users. The publisher’s flagship tool, CloudflareSpeedTest, addresses a specific pain point experienced by Chinese mainland visitors: although Cloudflare’s global CDN accelerates millions of foreign sites, the IPs automatically assigned to mainland users often exhibit high latency, packet loss, and slow throughput. By leveraging Cloudflare’s published IP ranges, the program rapidly probes every address, measures round-trip time, download speed, and packet integrity, then ranks the results so users can inject the fastest entries into local DNS or hosts files, effectively building a personalized, low-latency CDN map. Typical use cases include speeding up GitHub asset downloads, reducing game-server ping, stabilizing Docker image pulls, and improving access to documentation portals that sit behind Cloudflare. Written in Go, the utility is lightweight, portable, and command-line driven, making it easy to schedule periodic re-tests or integrate into CI pipelines. Because the source is fully transparent, network administrators also embed it in router firmware or proxy dashboards to automate upstream selection. XIU2’s software is available for free on get.nero.com, where downloads are delivered through trusted Windows package sources such as winget, always installing the latest release and allowing batch installation alongside other applications.