First Monitor: nostr:nprofile1qy28wumn8ghj7cnvv9ehgu3wvcmh5tnc09aqzrrhwden5te0vfexytnfduqzqwm285amxdvgx6ny68yq9y4edemf3mp45tju53gaa7nt6whna6uynewnpf

Second Monitor: http://mempool.orange.surf (scroll down)

Check the state of the mempool at a glance