Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
oscarcalcados.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 03:59:12 UTC · ↺ Refresh
MX Hostnames
- mx.a.locaweb.com.br
- mx.core.locaweb.com.br
- mx.b.locaweb.com.br
- mx.jk.locaweb.com.br
MX Priorities
- mx.a.locaweb.com.br: 20
- mx.core.locaweb.com.br: 10
- mx.b.locaweb.com.br: 20
- mx.jk.locaweb.com.br: 20
A / AAAA Records
- 34.120.54.55 ↩ 55.54.120.34.bc.googleusercontent.com
Mail Server IPs
- 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
- 200.234.204.130 ↩ mx.jk.locaweb.com.br
SOA Record
Raw SOA
ns1.locaweb.com.br postmaster.locaweb.com.br 2025111902 3600 600 1209600 3600
Primary NS (mname)
ns1.locaweb.com.br
Admin Email (rname)
postmaster@locaweb.com.br
Serial
2025111902
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns3.locaweb.com.br
ns2.locaweb.com.br
ns1.locaweb.com.br
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.locaweb.com.br include:amazonses.com include:spf-18.mailgrid.net.br -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 4 found
default._domainkey
mail._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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
9 records- google-site-verification=lhyMequch8uvQlRfSCIpPKI-TmWQcSumYY4SAXk3ckQ
- SPFv=spf1 include:_spf.locaweb.com.br include:amazonses.com include:spf-18.mailgrid.net.br -all
- facebook-domain-verification=27itidan5llmzkees09c2pv4br9afg
- google-site-verification=VDIDzu9ihgDr0ukRXlcWsRb7vdQGkGfTBxb7KLUYvRo
- MS=AC6E7FF129BFAFF3489CADDE670437FCC9AE8C88
- google-site-verification=eP78wnI_yOAtbJTlyzs_1CXPzCqSdOuysQ66BghdCXo
- NTA0MmQ1YWI3YjY1ZTFmNzU0YmEyZDZhOTBlMjMxYmE=
- google-site-verification=-ibcfBzbc96IMlLA_KYp_l0Eui6DDQ1Kg5du1Jo00t0
- google-site-verification=daf7YeZXiudOYvKwXpQ1nzXbVDYACxs6ZrA-hPGFazw
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for oscarcalcados.com.br
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits