Why the error ? {“records”:[],“raw”:"",“hasUnparsableRecords”:false}

Just tried below call.

curl --request GET
–url ‘https://dns-lookup5.p.rapidapi.com/simple?domain=google.com&recordType=DNSKEY’
–header ‘X-RapidAPI-Host: dns-lookup5.p.rapidapi.com’
–header ‘X-RapidAPI-Key: **************’