I've been on the internet for over 2 decades and it still got me... I didn't expect a prank from a daily game and they definitely did it right.
Just so I don't sound too smart, unlike you, I only went to Heardle after reading DanHoelck's comment noting it was a prank. That was a massive hint. The way they executed it on the page confirmed I was correct so I didn't even bother to click the link.
I play heardle every morning (7am) with my coworkers. Being it was early I didn't think about what day it was and was properly fooled.
