List of best mirrors for IP address 13.59.134.218, located in an unknown country.
I am very sorry, but no mirror was found. Feel free to download directly:
http://mirrordirector-mb.raspbian.org/raspbian/pool/main/q/qt3d-opensource-src/libqt53dquickextras5_5.15.8+dfsg-2+rpi1+b1_armhf.deb