Google has introduced several new features to AdSense to simplify managing sites connected to the ad network.
The updates aim to help publishers quickly verify site ownership and check their ads.txt status.

Real-Time Site Ownership Verification

AdSense performs real-time verification when a publisher adds a new site to their account.
In the past, verification required a manual review process that could take over a day. Real-time verification allows publishers to set up ads faster after registering a new property.

New Meta Tag Verification Method

Publishers can now use a meta tag to confirm site ownership with AdSense.
This method is an alternative to the traditional AdSense code snippet, designed for those who wish to avoid displaying ads on their homepage.
By placing the meta tag code between the < head> and < /head> tags in their page’s HTML, publishers can verify their site without the need to embed the AdSense code on the homepage.
Source:  SEJ