I. Site Editions
(A) Enterprise Sites
1. Sohu: http://mirrors.sohu.com/
2. NetEase: http://mirrors.163.com/
3. Alibaba Cloud: http://mirrors.aliyun.com/
4. Tencent: http://android-mirror.bugly.qq.com:8080/ (Only for app development software, rate-limited, not recommended)
(B) Educational Sites
1. Shanghai Jiao Tong University: http://ftp.sjtu.edu.cn/html/resources.xml (Some mobile carrier exit nodes have poor connectivity, may be inaccessible)
2. Huazhong University of Science and Technology: http://mirror.hust.edu.cn/ (Estimated current capacity used: 4.83T)
3. Tsinghua University: http://mirrors.tuna.tsinghua.edu.cn/ (Estimated current capacity used: 9.8T)
4. Beijing Institute of Technology: http://mirror.bit.edu.cn/web/
5. Lanzhou University: http://mirror.lzu.edu.cn/
6. University of Science and Technology of China (USTC): http://mirrors.ustc.edu.cn/ (Estimated used capacity: 21.32T)
7. Dalian Neusoft University of Information: http://mirrors.neusoft.edu.cn/ (Estimated used capacity: 2.5T)
8. Northeastern University: http://mirror.neu.edu.cn/
9. Dalian University of Technology: http://mirror.dlut.edu.cn/
10. Harbin Institute of Technology: http://run.hit.edu.cn/html/ (Some China Unicom ISP routes are poor, may be inaccessible)
11. Beijing Jiaotong University: http://mirror.bjtu.edu.cn/cn/
12. Tianjin University: http://mirror.tju.edu.cn (Unreachable, ping timeout)
13. China University of Geosciences: http://mirrors.cug.edu.cn/ (Estimated used capacity: 2.3T)
14. Zhejiang University: http://mirrors.zju.edu.cn/
15. Xiamen University: http://mirrors.xmu.edu.cn/
16. Sun Yat-sen University: http://mirror.sysu.edu.cn/
17. Chongqing University: http://mirrors.cqu.edu.cn/ (Estimated used capacity: 3.93T)
18. Beijing University of Chemical Technology: http://ubuntu.buct.edu.cn/ (Android SDK mirror is for internal campus use only, estimated used capacity: 1.72T)
19. Nanyang Institute of Technology: http://mirror.nyist.edu.cn/
20. Chinese Academy of Sciences: http://www.opencas.org/mirrors/
21. University of Electronic Science and Technology of China: http://ubuntu.uestc.edu.cn/ (Unreachable, ping timeout)
22. UESTC Xingchen Studio: http://mirrors.stuhome.net/ (Estimated used capacity: 1.08T)
23. Northwest A&F University: http://mirrors.nwsuaf.edu.cn/ (Only mirrors CentOS, estimated used capacity: 140GB)
(III). Others
1. Capital Online Data Service Co., Ltd.: http://mirrors.yun-idc.com/
2. China Telecom eSurfing Cloud: http://mirrors.ctyun.cn/
3. noc.im: http://mirrors.noc.im/(Estimated current used capacity: 3.74T)
4. Changzhou Bitcomm Software Technology Co., Ltd.: http://centos.bitcomm.cn/ (CentOS mirror only, estimated current used capacity: 140GB)
5. PubYun (parent company: Bitcomm): http://mirrors.pubyun.com/
6. Linux Ops School: http://mirrors.skyshe.cn/ (Hosted on Alibaba Cloud, interface uses Zhejiang University’s template, homepage maintained, content accessible)
7. China Internet Network Information Center (CNNIC): http://mirrors.cnnic.cn/ (Apache mirror only, estimated current used capacity: 120GB)
8. Fayea Studio: http://apache.fayea.com/ (Apache mirror only, estimated current used capacity: 120GB)
2. By Software
(I) Operating Systems
1. Ubuntu
Alibaba Cloud: http://mirrors.aliyun.com/ubuntu-releases/
NetEase: http://mirrors.163.com/ubuntu-releases/
Sohu: http://mirrors.sohu.com/ubuntu-releases/ (Sohu appears to have stopped syncing after 2012)
Capital Online Technology Co., Ltd.Company:http://mirrors.yun-idc.com/ubuntu-releases/
2. CentOS
NetEase:http://mirrors.163.com/centos/
Sohu:http://mirrors.sohu.com/centos/
Alibaba Cloud:http://mirrors.aliyun.com/centos/
(II) Servers
1. Tomcat, Apache
CNNIC:http://mirrors.cnnic.cn/apache/
HUST:http://mirrors.hust.edu.cn/apache/
BIT:http://mirror.bit.edu.cn/apache/
2. MySQL
BIT:http://mirror.bit.edu.cn/mysql/Downloads/
China Telecom eCloud:http://mirrors.ctyun.cn/Mysql/
3. PostgreSQL
Zhejiang University:http://mirrors.zju.edu.cn/postgresql/
4. MariaDB
China Telecom eSurfing Cloud:http://mirrors.ctyun.cn/MariaDB/
5. VideoLAN
Dalian Neusoft University of Information:http://mirrors.neusoft.edu.cn/videolan/
University of Science and Technology of China:http://mirrors.ustc.edu.cn/videolan-ftp/
(III). Development Tools
1. Eclipse
University of Science and Technology of China:http://mirrors.ustc.edu.cn/eclipse/
Chinese Academy of Sciences:http://mirrors.opencas.cn/eclipse/
Northeastern University:http://ftp.neu.edu.cn/mirrors/eclipse/, http://mirror.neu.edu.cn/eclipse/
2. Android SDK
Chinese Academy of Sciences:http://mirrors.opencas.ac.cn/android/repository/
Nanyang Institute of Technology:http://mirror.nyist.edu.cn/android/repository/
Chinese Academy of Sciences:http://mirrors.opencas.cn/android/repository/
Tencent:http://android-mirror.bugly.qq.com:8080/android/repository/(Rate-limited, not recommended)
Dalian Neusoft University of Information:http://mirrors.neusoft.edu.cn/android/repository/(Sync performance not as good as CAS mirror, not recommended)
3. Xcode
Tencent:http://android-mirror.bugly.qq.com:8080/Xcode/(No longer updated after version 7.2, direct download from the official site is recommended)
III. Official Mirror List Status URLs
CentOS:http://mirror-status.centos.org/#cn
Archlinux:https://www.archlinux.org/mirrors/status/
Ubuntu:https://launchpad.net/ubuntu/+cdmirrors
Debian:http://mirror.debian.org/status.html
Fedora Linux/Fedora EPEL：https://admin.fedoraproject.org/mirrormanager/mirrors
Apache：http://www.apache.org/mirrors/#cn
Cygwin：https://www.cygwin.com/mirrors.html