There has been a new feature addition called “site diagnostic” in Adsense
. Here is more infomation for you:
—-(From Google)—-
What is the site diagnostic feature?
The Site Diagnostics page within your account provides details about whether our crawler was able to access your site in order to provide relevant ads. Our crawler sometimes encounters errors when attempting to crawl a page to determine its content. Using the site diagnostic section of your account, you can review the errors our crawler encountered for specific blocked URLs, then correct them in order for us to crawl and deliver the most relevant ads.
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You can visit your Adsense account for more.