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/nu1qsdxnsj2n83fa4h2wsxt4827rr0fwm33ka9zv03{
"isvalid": true,
"address": "nu1qsdxnsj2n83fa4h2wsxt4827rr0fwm33ka9zv03",
"scriptPubKey": "0014834d3849533c53dadd4e819753abc31bd2edc636",
"isscript": false,
"iswitness": true,
"witness_version": 0,
"witness_program": "834d3849533c53dadd4e819753abc31bd2edc636"
}