When I got this site link sharing from one member of our Demily - Jasonchiang#3732, I was very surprised that there is such kind of service, especially when we are so busy in chasing so many NFT projects.
Here are some information I can share with you, when you visit this site, you just need to input your wallet address. Then it will help to check your wallet in POAP (in fact, if you connect to POAP site (https://app.poap.xyz/), you can get the same result, but this site can provide proactive notification when you are too busy to connect to POAP).
