Domain Overview
DNS: ✓ 2h ago
Checker: ✓ 2h ago
nitride.co.jp
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-21 09:01:14 UTC · ↺ Refresh
MX Hostnames
- nitride.co.jp
MX Priorities
- nitride.co.jp: 10
A / AAAA Records
- 163.44.3.147 ↩ nitride.co.jp
Mail Server IPs
- 163.44.3.147 ↩ nitride.co.jp
SOA Record
Raw SOA
ns3.sphere.ad.jp dns.sphere.ad.jp 1576034162 86400 21600 2419200 3600
Primary NS (mname)
ns3.sphere.ad.jp
Admin Email (rname)
dns@sphere.ad.jp
Serial
1576034162
Refresh
86400s
Retry
21600s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
ns3.sphere.ad.jp
ns4.sphere.ad.jp
SPF Record
✓ Strict (-all)
v=spf1 include:fmx.etius.jp +ip4:163.44.3.147/32 +ip4:43.244.0.72/32 +ip4:163.44.3.2/32 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:fmx.etius.jp +ip4:163.44.3.147/32 +ip4:43.244.0.72/32 +ip4:163.44.3.2/32 -all
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