You've created a website with tons of seemingly related content and you're now looking to make your next million in related ad revenue through Google AdSense. But look, your Google ads are showing unrelated ads that no one will click on.
Here's the basic rundown on how to Remove Unwanted Ads from Google AdSense.
Login into your Google AdSense account.
Click AdSense Setup in the top tab. Click on Competitive Ad Filter.
Go to your own website and copy and paste all the URL addresses to remove from your webpage. For instance Godaddy ads seem to appear everywhere. I suggest copying and pasting all of them into NotePad.
Enter URLs to filter from ads on your content pages, then click Save changes. Changes may not take effect until up to a few hours. Make sure you remove subpages or sub domains from the links and just input root domains if you want to eliminate the advertiser all together.
Check back to your website after the changes have been updated within the Google AdSense system. There might be more ads you need to remove. This can be an ongoing process, but keep trying anyway.