Docker Mirror Speed Test & Config Generator
Measure mirror latency, choose fastest nodes, and generate daemon.json
Notes
- Results vary by network and time period.
- Run multiple tests and choose stable low-latency nodes.
- Some mirrors require login or allowlisting.
- Corporate networks may require proxy access.
Mirrors Available After Login
- Tencent Cloud Mirror
- NetEase Mirror
- Baidu Cloud Mirror
No-Auth Mirrors
- USTC Mirror
- Nanjing University Mirror
- Other Public Mirrors
Authentication Tips
- Enable mirror service in provider console.
- Complete docker login or credential setup per docs.
- Check account permissions and region restrictions if auth fails.
Testing
Custom Mirror
Test Results
No test run yet. Click "Start Test" first.
daemon.json Preview
Configuration Steps
- Save output to /etc/docker/daemon.json
/etc/docker/daemon.json - Restart Docker service to apply changes
sudo systemctl restart docker - Run docker info to verify loaded mirrors
docker info | grep -i registry