If you have made changes to the IP address that your website resolves to, and your think that DNS should have propagated by now, then you may have an issue with your DNS cache. You can flush the DNS cache by doing the following.
Windows 8
Right click on your start button, or press win+x on your keyboard
Right click on run then click run as administrator
In the command prompt, type
ipconfig /flushdns
If the command ran successfully, you’ll see output like this:
Windows IP configuration successfully flushed the DNS Resolver Cache.
Windows 7
Click on the start button
In the search text box, type cmd
Right click on the Command Prompt and click run as administrator
In the command prompt, type
ipconfig /flushdns
If the command ran successfully, you’ll see output like this:
Windows IP configuration successfully flushed the DNS Resolver Cache.
Windows 2000, XP, or Vista
Click on the start button
Click on Run
Type cmd in the text box and click on OK
In the command prompt, type
ipconfig /flushdns
If the command ran successfully, you’ll see output like this:
Successfully flushed the DNS Resolver Cache.
MacOS 10.10
Click on Applications
Click on Utilities
Double click on Terminal
Run the following in the command prompt
sudo discoveryutil mdnsflushcache
If the command ran successfully, you’ll see no output.
MacOS 10.7, 10.8, and 10.9
Click on Applications
Click on Utilities
Double click on Terminal
Run the following in the command prompt
sudo killall -HUP mDNSResponder
If the command ran successfully, you’ll see no output.
MacOS 10.5 and 10.6
Click on Applications
Click on Utilities
Double click on Terminal
Run the following in the command prompt
sudo dscacheutil -flushcache
If the command ran successfully, you’ll see no output.
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