From a Social Security blog:
We are excited to share a preview of our new website coming this year. ...
The new design – we call it our beta website – seeks to improve your online experience, so you can get to the information and services you need faster. We also include new interactive tools, like our new benefit eligibility screener. It’s a convenient way to learn if you might be eligible for benefits, without needing to know what benefit programs are available from Social Security.
Your opinion is very important to us. We invite you to explore our beta website at beta.ssa.gov and to use the “Feedback” button on the right side of the screen to tell us what you think. You can visit the website on your computer, tablet, and smartphone.
The beta website is a work in progress. Some links you select may take you to webpages on the current SSA.gov. ...