List of best mirrors for IP address 18.216.57.57, located in an unknown country.
I am very sorry, but no mirror was found. Feel free to download directly:
http://mirrordirector-mb.raspbian.org/multiarch/pool/main/l/llvm-toolchain-6.0/clang-6.0-doc_6.0.1-10+rpi1_all.deb