_821cd198a56383fbf355128cbb9525ff.builder.nu has no NS records.
NS records for this zone are defined at builder.nu.
NS records for this zone are defined at builder.nu.
Question and response
Question
dig fef89039a58b711560f5626df6ea4da1.364d6cec2c747c103ea308f5a48287d6.comodoca.com. NS
Answer
The response has no answer records.
Authority
comodoca.com. 600 SOA ns1.as48447.net. hostmaster.comodoca.com. 2025310301 1800 1200 1814400 5400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0