Why is my Google Adsense ads not showing up on my blog?

If ads are not showing on your site after you've added the AdSense ad code, please first try clearing your browser cache and deleting your cookies before trying to access your site again.
There are a few common reasons why ads may not display on your website after correctly adding the AdSense code to your webpages.

Computer and browser settings

Is JavaScript enabled in your browser?
Do you have personal firewall software with an ad blocking feature or any other ad blocking software installed?