5
records
Name Servers
TTL
NS
—
20m
NS
—
20m
corekago.jp. 1200 IN NS ns6.nhncorp.jp. corekago.jp. 1200 IN NS ns7.nhncorp.jp.
SOA Details
TTL
20m
SOA
Responsible
postmaster.nhncorp.jp
SOA
Serial
2021070701
SOA
Times
Refresh
1d
Retry
1h
Expire
7d
Minimum TTL
1h
corekago.jp. 1200 IN SOA ns6.nhncorp.jp. postmaster.nhncorp.jp. 2021070701 86400 3600 604800 3600
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
No DMARC TXT record was returned (expected at `_dmarc.<domain>` with `v=DMARC1`). Without DMARC you cannot publish receiver policy or standard aggregate failure reports (RUA).
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 |
|
||
| + Pass | ip4 |
|
||
| ~ Softfail | all |
—
|
|
20m
corekago.jp. 1200 IN TXT "v=spf1 include:spf.corekago.jp +ip4:203.104.247.36 ~all"
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).