Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tbit.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 05:21:10 UTC · ↺ Refresh
MX Hostnames
- mx.core.locaweb.com.br
- mx.jk.locaweb.com.br
- mx.b.locaweb.com.br
- mx.a.locaweb.com.br
MX Priorities
- mx.jk.locaweb.com.br: 10
- mx.a.locaweb.com.br: 20
- mx.core.locaweb.com.br: 10
- mx.b.locaweb.com.br: 20
A / AAAA Records
- 85.209.92.190 ↩ tbit.com.br
- 2a02:4780:14:3328::1 ↩ tbit.com.br
Mail Server IPs
- 200.234.204.130 ↩ mx.jk.locaweb.com.br
- 186.202.4.42 ↩ mx.a.locaweb.com.br
- 177.153.23.241 ↩ mx.core.locaweb.com.br
- 177.153.23.242 ↩ mx.b.locaweb.com.br
SOA Record
Raw SOA
a.sec.dns.br hostmaster.registro.br 2026065000 345600 900 604800 900
Primary NS (mname)
a.sec.dns.br
Admin Email (rname)
hostmaster@registro.br
Serial
2026065000
Refresh
345600s
Retry
900s
Expire
604800s
Minimum TTL
900s
Nameservers (NS)
b.sec.dns.br
a.sec.dns.br
SPF Record
✓ Soft Fail (~all)
v=spf1 a:tbit.com.br include:_spf.locaweb.com.br ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=s; aspf=r; fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 392 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
2 records- SPFv=spf1 a:tbit.com.br include:_spf.locaweb.com.br ~all
- google-site-verification=i934tFXlHCueACSP8tkvuuIJ0WhLXu0pPhFx1gKM0kg
Full email verification for tbit.com.br
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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