Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
byd.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 08:17:47 UTC · ↺ Refresh
MX Hostnames
- mx03.f5www.byd.com
- mx03.f5www.byd.com
MX Priorities
- mx03.f5www.byd.com: 0
- mx03.f5www.byd.com: 5
A / AAAA Records
- 47.106.90.124 (no PTR)
- 47.107.51.11 (no PTR)
Mail Server IPs
- 147.50.193.22 ↩ mgw-th02.byd.com
SOA Record
Raw SOA
ps-dnsm-03.byd.com wang.hongbo.byd.com 616444357 900 600 604800 3600
Primary NS (mname)
ps-dnsm-03.byd.com
Admin Email (rname)
wang@hongbo.byd.com
Serial
616444357
Refresh
900s
Retry
600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns3.byd.com.cn
ns2.byd.com.cn
ns1.byd.com.cn
SPF Record
✓ Strict (-all)
v=spf1 ip4:219.134.188.36 ip4:219.134.188.37 ip4:221.179.18.134 ip4:221.179.18.135 ip4:147.50.193.21 ip4:147.50.193.22 ip4:159.138.50.239 ip4:182.160.7.15 ip4:192.18.132.121 ip4:192.9.228.57 ip4:218.17.215.97 ip4:218.17.215.98 ip4:218.17.215.118 ip4:65.200.46.124 ip4:63.110.44.13 ip4:58.250.47.93 ip4:63.110.44.14 ip4:47.176.74.109 include:spf.protection.outlook.com a:gw.byd.com a:mx03.f5www.byd.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;ruf=mailto:[email protected];rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
11 records- MS=ms34507941
- za6jqEy8HfSXj4DaqAII+5DCniycXhL9omu1SKbxQeCp6ywk+ZNgJJFEmIx3yQ1TeY9QK2nJogjK5OB7U0S52g==
- google-site-verification=2V0qh_GtOJ7ra9j76pvzaZ0QYE4MDx4wzftS0Fk1OF4
- ae5d3c0262155fd79e4dbe7ae156f2df
- google-site-verification=MhohC1pkeKgZriRXN2Ybh9bYqp5flsoB-VasOS90kbw
- /usKVQ+DG9iQIVJT6nPGzal7qPDfhWplJ1xo/xe/pGyEnpULnEnJDOiVIXLXVD1oXmPejrw66x6hQxGLZPXA4A==
- qqmail-site-verification=f1d2dee95f2a92dde2eae2719bcb4028c168db1ca10
- _globalsign-domain-verification=elKvE_Vvk_cJ4c92AB1Afid17y3msHUKhftRJBNPJZ
- facebook-domain-verification=clgb522oabyll52aemaep0pez9gzv1
- SPFv=spf1 ip4:219.134.188.36 ip4:219.134.188.37 ip4:221.179.18.134 ip4:221.179.18.135 ip4:147.50.193.21 ip4:147.50.193.22 ip4:159.138.50.239 ip4:182.160.7.15 ip4:192.18.132.121 ip4:192.9.228.57 ip4:218.17.215.97 ip4:218.17.215.98 ip4:218.17.215.118 ip4:65.200.46.124 ip4:63.110.44.13 ip4:58.250.47.93 ip4:63.110.44.14 ip4:47.176.74.109 include:spf.protection.outlook.com a:gw.byd.com a:mx03.f5www.byd.com -all
- _globalsign-domain-verification=a1CRazbTn8wZdBjb92hkIJv-P9LSpnivIgWqWqilXK
Full email verification for byd.com
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