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/nu1q5mtuapfwh77tkpvspna596ldms4h7df6u6skdt{
"isvalid": true,
"address": "nu1q5mtuapfwh77tkpvspna596ldms4h7df6u6skdt",
"scriptPubKey": "0014a6d7ce852ebfbcbb05900cfb42ebeddc2b7f353a",
"isscript": false,
"iswitness": true,
"witness_version": 0,
"witness_program": "a6d7ce852ebfbcbb05900cfb42ebeddc2b7f353a"
}