9
records
Name Servers
TTL
codersden.tech. 1200 IN NS ns1.zonedns.vn. codersden.tech. 1200 IN NS ns2.zonedns.vn. codersden.tech. 1200 IN NS ns3.zonedns.vn. codersden.tech. 1200 IN NS ns4.zonedns.vn.
Mail Servers
TTL
codersden.tech. 1200 IN MX 0 codersden-tech.mail.protection.outlook.com.
SOA Details
TTL
20m
SOA
Responsible
root.codersden.tech
SOA
Serial
2026041907
SOA
Times
Refresh
20m
Retry
10m
Expire
14d
Minimum TTL
1h
codersden.tech. 1200 IN SOA ns1.zonedns.vn. root.codersden.tech. 2026041907 1200 600 1209600 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 |
|
||
| - Fail | all |
—
|
|
20m
codersden.tech. 1200 IN TXT "v=spf1 include:spf.protection.outlook.com -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).
Text Content
TTL
MS=ms64104693
20m
TXT
—
hosting-site=student-management-fireb-a3829
20m
codersden.tech. 1200 IN TXT "MS=ms64104693" codersden.tech. 1200 IN TXT "hosting-site=student-management-fireb-a3829"