List of best mirrors for IP address 18.227.48.237, 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/x/xdmf/libxdmf3t64_3.0+git20190531-13.1+b2_armhf.deb