IPv4 Addresses

TTL

Name Servers

TTL

Mail Servers

TTL

SOA Details

TTL
SOA Primary NS
5m
SOA Responsible
dnsadmin.brookings.edu
SOA Serial
4063490
SOA Times
Refresh 20m
Retry 10m
Expire 14d
Minimum TTL 2h

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 Subdomain Policy

Subdomain policy (sp): when set, it applies to hostnames below this domain instead of p; if omitted, subdomains inherit the organizational policy.

none quarantine reject
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.

DKIM

TTL
DKIM Selector selector1
v=DKIM1 k=rsa
20m
Public Key
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrfxm0F1NU6SSQViPd...

SPF (Sender Policy Framework)

TTL
SPF SPFv1
Qualifier Mechanism Target / value Valid Details
+ Pass mx
+ Pass include
+ Pass include
+ Pass include
+ Pass include
+ Pass ip4
+ Pass ip4
+ Pass ip4
+ Pass ip4
- Fail 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).

Text Content

TTL
asv=60b8ca3ac8dfe2a307d07e720cd66d8a
20m
parkable-domain-verification=nMtszK-QWQ2CpGYv_GjQjxubbCJBAHFfodDSFEKWM5c=
20m
TXT
EQI28F2QN0TF1LWARPNLCP8TM5XDS2T2B3CC14XN4
20m
TXT
_n3e3eg05uu6gzy2drneznrxhratqx00
20m
TXT
nintex.6585fe1966f83c75b4b2445f
20m