Since this explorer is database-free, it doesn't natively support address balances & transaction history. However, you can check it in :
https://explorer.taobot.org/address/nu1qrlnvx48ws7jl39lsuuzdlee4v4wmzdl4za734n{
"isvalid": true,
"address": "nu1qrlnvx48ws7jl39lsuuzdlee4v4wmzdl4za734n",
"scriptPubKey": "00141fe6c354ee87a5f897f0e704dfe735655db137f5",
"isscript": false,
"iswitness": true,
"witness_version": 0,
"witness_program": "1fe6c354ee87a5f897f0e704dfe735655db137f5"
}