Formerly known as the World of Darkness (to, obviously, create maximum confusion with the World of Darkness), for most of its history it was known as the nWoD: the new World of Darkness.
Following shenanigans, Paradox renamed it to the Chronicles of Darkness, which was a welcome change…but, as of 2024, it appears that Paradox has effectively canceled the entire gameline.
The principle games are itself,^A) Mage: the Awakening, Werewolf: the Forsaken and Vampire: the Requiem, but includes a lot more stuff.

• World of Darkness - This page covers both WoD and CoD.
• There isn’t an official website, I think, though I do vaguely remember there being something at some point.
• From a purely theoretical standpoint, I prefer the versatility of CoD over WoD, though WoD’s Vampire has better lore…not that that matters, since you can totally just play Masquerade in Requiem.