mx2.2gis.com has no NS records.
NS records for this zone are defined at 2gis.com.
NS records for this zone are defined at 2gis.com.
Question and response
Question
dig mx2.2gis.com. NS
Answer
The response has no answer records.
Authority
2gis.com. 1800 SOA ns.2gis.com. hostmaster.2gis.com. 2026030217 1200 300 2592000 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0