This website allows for quick analysis of the largest indices in the world, primarily made for quick price YTD comparison. It is a streamlined experience, with no account signup or bloated layout, just a simple table with the ability to learn more about each index.
I commonly compare various strategies, using the YTD returns of different large indices. I always found it a pain to manually compare, with many different clicks. This is why I instead created a quick and easy way for me to compare my different YTD price return values.