DockerHub is a curated list of working Docker image mirror accelerators for users in mainland China and other regions with restricted access to Docker Hub.
The project addresses the problem of slow or blocked Docker image pulls from the official Docker Hub by maintaining a current registry of functional mirror acceleration services. Many traditional domestic mirror sources operated by cloud providers and universities have become unavailable due to regulatory requirements, leaving developers without reliable alternatives. This repository solves that by documenting which mirror services remain operational and providing their access URLs, allowing users to configure their Docker daemon to pull images through faster, accessible proxies instead of the official registry.
Developers in regions with poor connectivity to Docker Hub or facing access restrictions should use this list to find working alternatives. The project is most useful for teams in mainland China and similar contexts where direct Docker Hub access is slow or unreliable. Some listed mirrors provide only basic or whitelisted images rather than the full Docker Hub catalog, so users may need to try multiple addresses if a particular image is unavailable through one service. The repository notes that some mirror services are maintained by volunteers at personal expense and should be used responsibly.
The project maintains an active list of tested mirror services with regular verification of which accelerators remain functional. The README documents specific dates when mirrors were tested and notes which services have been taken offline due to regulatory action, indicating ongoing monitoring of the ecosystem. The repository tracks both working mirrors with their configuration URLs and a separate section of defunct services, helping users avoid wasted troubleshooting on unavailable options.
