IPv4 Addresses
numberonecdp.com. 1200 IN A 15.197.70.98
Name Servers
numberonecdp.com. 1200 IN NS ns1.markmonitor.com. numberonecdp.com. 1200 IN NS ns2.markmonitor.com. numberonecdp.com. 1200 IN NS ns3.markmonitor.com. numberonecdp.com. 1200 IN NS ns4.markmonitor.com.
SOA Details
numberonecdp.com. 1200 IN SOA ns1.markmonitor.com. hostmaster.markmonitor.com. 2026041302 86400 3600 2592000 172800
Certificate Authority Authorization
No CAA records were returned at this registrable domain name. With no CAA policy, any public certificate authority (CA) may issue TLS certificates for names under this zone unless a parent publishes CAA; add issue / issuewild / iodef records to restrict issuance.
DMARC
Organizational policy (p): how receivers treat mail that fails aligned DMARC checks — none (monitor only), quarantine (often junk), or reject (block).
Subdomain policy (sp): when set, it applies to hostnames below this domain instead of p; if omitted, subdomains inherit the organizational policy.
pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).
100Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
Forensic (per-failure) reports. Often omitted for privacy or volume.
numberonecdp.com. 1200 IN DMARC v=DMARC1; p=reject; sp=reject; aspf=s; pct=100
DKIM
numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p= numberonecdp.com. 1200 IN DKIM v=DKIM1; p=
SPF (Sender Policy Framework)
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| - Fail | all |
—
|
|
numberonecdp.com. 1200 IN TXT "v=spf1 -all"
MTA-STS
This hostname does not publish an MTA-STS policy (no v=STSv1 TXT at _mta-sts.<name> and/or no policy at https://mta-sts.<name>/.well-known/mta-sts.txt).