IPv4 Addresses

TTL

IPv6 Addresses

TTL

Name Servers

TTL

Mail Servers

TTL
20m

SOA Details

TTL
SOA Primary NS
20m
SOA Responsible
dom_admi.t-online.de
SOA Serial
2026051300
SOA Times
Refresh 1h
Retry 15m
Expire 14d
Minimum TTL 10h

Certificate Authority Authorization

TTL

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.

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 a
+ Pass mx
+ Pass include
- Fail all
20m

MTA-STS

TTL
v=STSv1; id=k4Er7o46ih7m5e4a
View
20m

DNSSEC Public Keys

TTL
DNSKEY
257 3 14 FpNgecCygs96NFx1HqmVrvsYPSovNEvqUkDZEb1i8r8aLOQLXbMK3K2zumWAbq/yC7aDeavglixMujIEIHZhaEGs5MANTEgpGiOQHggbD8iJckRtSvq44F7L631ZkpvJ
20m
DNSKEY
256 3 14 y/YbKY/1EsCem+7j2+WI3sghDF23DURN1WnuXwsOEJ7LrEaEdlYPQHBBfT+4VFDw50L/j1+w8DYvJvW8K/qifz0NZOc2fQH9YLtRkwiKSnaHD0EjkB+n6YYhYqIBzyHr
20m

Delegation Signer

TTL
DS
63736 14 2 65A137A83E513D8CA45051237F23C9EABDA3BA2785B22620963A7F42040555FB
20m