How to clear your DNS cache

The following methods allow you to remove old and inaccurate DNS information that may result in 404 errors.

Windows® XP, 2000, or Vista®

1. Click the Start button.
2. On the Start menu, click Run....
3. If you do not see the Run command in Vista, enter "run" in the Search bar.
4. Type the following in the Run text box: ipconfig /flushdns

MacOS® 10.7

1. Click Applications.
2. Click Utilities.
3. Double-click the Terminal application.
4. Type the following: sudo killall -HUP mDNSResponder

ALERT! Warning: To run this command, you will need to know the computer's Admin account password.

MacOS® 10.5 and 10.6

1. Click Applications.
2. Click Utilities.
3. Double-click the Terminal application.
4. Type the following: dscacheutil -flushcache