If you’re having issues with a website loading on your Mac, here’s a tip that might help. This is especially useful if the site seems to be working fine for everyone else and clearing your browser cache doesn’t help.
Start by opening the Finder and clicking of Applications. The choose Utilities.
Then choose Terminal.
At the prompt, type the following: sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder Then hit Enter. You’ll be prompted to enter your Mac password.