J.K. Rowling’s 2011 interactive Harry Potter website was called Pottermore.
Pottermore launched in 2011 as a digital platform connected to the Harry Potter books. It offered interactive experiences, supplementary writing by Rowling, sorting into Hogwarts houses, wand selection, and access to digital editions and audiobooks. The site was developed with Sony and initially opened through an invitation-based registration process.
In 2019, Pottermore Publishing was established as part of the site’s transition, and the consumer website was later replaced by WizardingWorld.com. That later name is why readers may remember the current platform rather than Pottermore. The original 2011 name remains the specific answer for Rowling’s first major interactive Harry Potter website.