One of these things is different than the other.
I just changed my DNS server to Google and got astonishingly faster results on SpeedTest.net:
HOT TO: Add Google DNS Servers on a Mac:
1. Go to System Preferences -> Network -> click “Advanced”Note: I also left the existing Comcast DNS in there as the last option.
2. Click the “DNS” tab and then the ” + ”
3. Paste or type in 18.104.22.168 and 22.214.171.124.
Using Google Public DNS.
Important: Before You Start:How's your speed?
Before you change your DNS settings to use Google Public DNS, be sure to write down the current server addresses or settings on a piece of paper. It is very important that you keep these numbers for backup purposes, in case you need to revert to them at any time.