OS X Yosemite 10.10.4

Setzen Sie den DNS-Cache in OS X Yosemite 10.10.4 mit dem folgenden Terminal-Befehl zurück:

sudo killall -HUP mDNSResponder

Source: https://support.apple.com/de-de/HT202516

OS X Yosemite 10.10.4

This one is nearly similar to the one above. It might be more efficient.

sudo dscacheutil -flushcache;sudo killall -HUP mDNSResponder;say cache flushed

Source: http://osxdaily.com/2014/11/20/flush-dns-cache-mac-os-x/

Chrome dns cache

chrome://net-internals/#dns

Might work only on chrome os?

Chrome options

Delete browser cache in options might also have an effect.

"Go to tools -> options -> Under the hood -> Clear Browsing data and check 'empty the cache' and click on clear browsing data.

Source: http://superuser.com/questions/203674/how-to-clear-flush-the-dns-cache-in-google-chrome