Knowledgebase

Your DNS cache stores the locations (IP addresses) of pages you have recently viewed. If the location of the page changes before the entry in your DNS cache is updated, you will be unable to access the page.

If you are encountering a high number of HTML 404 error codes, you may need to flush your DNS cache. Once you clear your DNS cache, your computer will query nameservers for the new DNS information you require.

Clearing the DNS cache on various Operating Systems

Windows 7

1. Open the Start menu
2. Go to command prompt (If you do not see the command prompt command, search for "cmd" in the Search bar)
3. In the command prompt text box, type: ipconfig /flushdns
4. Press Enter or Return, and your cache will be flushed

Windows XP, 2000, or Vista

1. Open the Start menu
2. Go to Run (If you do not see the Run command in Vista, search for "run" in the Search bar)
3. In the Run text box, type: ipconfig /flushdns
4. Press Enter or Return, and your cache will be flushed

MacOS

1. Go to Applications
2. Go to Utilities.
3. Open the Terminal application
4. Type: dscacheutil -flushcache
5. Press Enter or Return, and your cache will be flushed