Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
baidu.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 06:37:18 UTC · ↺ Refresh
MX Hostnames
- mx.baidu.com
- mx.maillb.baidu.com
MX Priorities
- mx.baidu.com: 20
- mx.maillb.baidu.com: 10
A / AAAA Records
- 111.63.65.103 (no PTR)
- 111.63.65.247 (no PTR)
- 124.237.177.164 (no PTR)
- 110.242.74.102
Mail Server IPs
- 104.193.89.228 ↩ usmx03.baidu.com
- 220.181.3.85 ↩ mx21.baidu.com
- 220.181.50.185 ↩ mx22.baidu.com
- 111.206.215.185 ↩ mx24.baidu.com
- 119.63.196.201 ↩ jpmx.baidu.com
- 111.202.115.85 ↩ mx20.baidu.com
- 104.193.89.227 ↩ usmx02.baidu.com
SOA Record
Raw SOA
dns.baidu.com sa.baidu.com 2012150798 300 300 2592000 600
Primary NS (mname)
dns.baidu.com
Admin Email (rname)
sa@baidu.com
Serial
2012150798
Refresh
300s
Retry
300s
Expire
2592000s
Minimum TTL
600s
Nameservers (NS)
ns7.baidu.com
ns3.baidu.com
ns4.baidu.com
dns.baidu.com
ns2.baidu.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf1.baidu.com include:spf2.baidu.com include:spf3.baidu.com include:spf4.baidu.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=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
selector1._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- SPFv=spf1 include:spf1.baidu.com include:spf2.baidu.com include:spf3.baidu.com include:spf4.baidu.com -all
- 9279nznttl321bxp1j464rd9vpps246v
- _globalsign-domain-verification=qjb28W2jJSrWj04NHpB0CvgK9tle5JkOq-EcyWBgnE
- google-site-verification=GHb98-6msqyx_qqjGl5eRatD3QTHyVB6-xQ3gJB5UwM
Full email verification for baidu.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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