Qt Project
https://download.qt.io
11
https://qt.mirror.constant.com/timestamp.txt
https://mirrors.ukfast.co.uk/sites/qt.io/timestamp.txt
https://mirrors.20i.com/pub/qt.io/timestamp.txt
https://ftp.nluug.nl/languages/qt/timestamp.txt
https://mirror.netcologne.de/qtproject/timestamp.txt
https://qt-mirror.dannhauer.de/timestamp.txt
https://ftp.fau.de/qtproject/timestamp.txt
https://mirrors.dotsrc.org/qtproject/timestamp.txt
https://ftp.icm.edu.pl/packages/qt/timestamp.txt
https://ftp.acc.umu.se/mirror/qt.io/qtproject/timestamp.txt
https://www.nic.funet.fi/pub/mirrors/download.qt-project.org/timestamp.txt
https://qtproject.mirror.liquidtelecom.com/timestamp.txt
https://mirrors.sau.edu.cn/qt/timestamp.txt
https://mirror.bjtu.edu.cn/qt/timestamp.txt
https://mirrors.ustc.edu.cn/qtproject/timestamp.txt
https://mirrors.sjtug.sjtu.edu.cn/qt/timestamp.txt
https://ftp.jaist.ac.jp/pub/qtproject/timestamp.txt
https://ftp.yz.yamagata-u.ac.jp/pub/qtproject/timestamp.txt