Ad unit error: Invalid URL in Ad Unit HTML code
Attribute src should contain a normalized URL. If a URL is not normalized, you’ll get this error message.
You can check if the URL is correct by copy-pasting it into browser address bar - a banner should be displayed. E.g. you copy this:

And see a banner:

So, the URL in the src attribute is correct.




You can check if the URL is correct by copy-pasting it into browser address bar - a banner should be displayed. E.g. you copy this:

And see a banner:

So, the URL in the src attribute is correct.
Here are examples of invalid URLs:




Updated on: 03/11/2023
Thank you!