blueletterbible.org shows a non-Catholic Bible. Where is the Catholic Bible?
Try E-Sword. They have the Douay-Rheims and the Latin Vulgate available for free. Here’s a link. e-sword.net/bibles.html
I also use awmach.org. Even though it has a protestant statement of faith, it is refreshing to see the Douay-Rheims and Latin Vulgate, and you can do parallel translation comparisons with them as well.