List of best mirrors for IP address 52.14.26.141, 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/php-guzzlehttp-psr7/php-guzzlehttp-psr7_2.7.0-1_all.deb