Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jsb-g.co.jp
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 23:31:12 UTC · ↺ Refresh
MX Hostnames
- aspmx3.googlemail.com
- alt2.aspmx.l.google.com
- aspmx2.googlemail.com
- aspmx.l.google.com
- alt1.aspmx.l.google.com
MX Priorities
- alt2.aspmx.l.google.com: 5
- aspmx2.googlemail.com: 10
- aspmx3.googlemail.com: 10
- aspmx.l.google.com: 1
- alt1.aspmx.l.google.com: 5
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 172.253.122.26 ↩ bh-in-f26.1e100.net
- 2607:f8b0:4004:c06::1a ↩ bg-in-f26.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
SOA Record
Raw SOA
master.dns.ne.jp tech.sakura.ad.jp 2026030902 3600 900 3600000 3600
Primary NS (mname)
master.dns.ne.jp
Admin Email (rname)
tech@sakura.ad.jp
Serial
2026030902
Refresh
3600s
Retry
900s
Expire
3600000s
Minimum TTL
3600s
Nameservers (NS)
ns1.dns.ne.jp
ns2.dns.ne.jp
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.bmv.jp include:_spf.google.com include:_spf.activegate-ss.jp +a:nat.cybozu.com +ip4:202.32.19.69 +ip4:202.214.100.0/28 +ip4:160.17.0.0/16 +ip4:153.127.118.212 mx ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected],mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- MS=FE45CD3A6F37A16029F29CBD29A3C036A14DFBE7
- google-site-verification=WvkiBwOyMqWNjtBRy4-vbWQlHdSVQGVpN-lU3J3FmN0
- google-site-verification=yq0yWX-wiyt-JDFrz2a9ruP0NGXys0ZDMj12FjciKxg
- google-site-verification=OTrEtNjI64i8P_Zmfb1yrsUzdSBTUbW5XcVc7YZoF5k
- SPFv=spf1 include:spf.bmv.jp include:_spf.google.com include:_spf.activegate-ss.jp +a:nat.cybozu.com +ip4:202.32.19.69 +ip4:202.214.100.0/28 +ip4:160.17.0.0/16 +ip4:153.127.118.212 mx ~all
- apple-domain-verification=932SEB30D0n4oco1
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