List of best mirrors for IP address 3.15.192.89, 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/p/python-certbot-dns-rfc2136/python-certbot-dns-rfc2136_2.9.0.orig.tar.gz