Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
congusa.com.mx
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-07-01 16:03:17 UTC · ↺ Refresh
MX Hostnames
- congusa.com.mx
MX Priorities
- congusa.com.mx: 0
A / AAAA Records
- 198.251.76.238 ↩ bas.yelloweb4.net
Mail Server IPs
- 198.251.76.238 ↩ bas.yelloweb4.net
SOA Record
Raw SOA
ns1.yelloweb4.net alejandro.yw.com.mx 2026060801 3600 1800 1209600 86400
Primary NS (mname)
ns1.yelloweb4.net
Admin Email (rname)
alejandro@yw.com.mx
Serial
2026060801
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2.yelloweb4.net
ns1.yelloweb4.net
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:198.251.76.238 +ip4:104.143.10.36 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: none
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 +a +mx +ip4:198.251.76.238 +ip4:104.143.10.36 ~all
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