DNS Gurus
10 records

IPv4 Addresses

TTL

Name Servers

TTL

Mail Servers

TTL

SOA Details

TTL
SOA Primary NS
ns01.one.com
20m
SOA Responsible
hostmaster.one.com
SOA Serial
2026062105
SOA Times
Refresh 4h
Retry 1h
Expire 14d
Minimum TTL 10m

Certificate Authority Authorization

TTL

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

TTL
DMARC Policy

Organizational policy (p): how receivers treat mail that fails aligned DMARC checks — none (monitor only), quarantine (often junk), or reject (block).

none quarantine reject
20m
DMARC Percentage

pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).

100
DMARC RUA

Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.

No aggregate report URIs (RUA).
DMARC RUF

Forensic (per-failure) reports. Often omitted for privacy or volume.

No forensic report URIs (RUF).

DKIM

TTL

No DKIM TXT with `v=DKIM1` was returned for the selector names we probe automatically.

SPF (Sender Policy Framework)

TTL
SPF SPFv1
Qualifier Mechanism Target / value Valid Details
+ Pass include
_spf.mlsend.com
+ Pass include
_custspf.one.com
+ Pass mx
—
+ Pass a
—
+ Pass ip4
158.255.42.212
~ Softfail all
—
20m

MTA-STS

TTL

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).

DNSSEC Public Keys

TTL
DNSKEY
256 3 13 6Dz9lcQPry61HpknRORHkRM6Grr1LTX/pJNkbQO4Q9pDVxXjgHWwhfo25yBY1mkZ7TC77jYObQ2/KqVDUTbIBw==
10m
DNSKEY
257 3 13 KnNgnBdocpf9qpZrMwnqr90Z3Z2gxuWls04gC4hAzEKHjNUvlDw6HZEMnuAzs2IlTGyYjZg1b/bqkl+A3rMqng==
10m

Delegation Signer

TTL
DS
25941 13 2 85323B41BB6028DDD7AA07793538B4CDB672A1DAD79B712F463F793B39631967
20m