Response from 'registro.br' is not RDAP compliant - use result from '' instead. Consider a WHOIS lookup instead.
API
You may perform this lookup using the API and get the results as easy-to-parse JSON data.
Read more on the API at https://iamroot.tech/about/api (regarding authentication and rate limits, among other things), or give it a go right away using the 'try it' button.