spf.crowdtech.com has no NS records.
NS records for this zone are defined at crowdtech.com.
NS records for this zone are defined at crowdtech.com.
Question and response
Question
dig spf.crowdtech.com. NS
Answer
The response has no answer records.
Authority
crowdtech.com. 100 SOA ns-s.dns.yourhosting.nl. hostmaster.firstfind.nl. 2026012604 16384 2048 1048576 14400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0