Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
singu.com.br
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 03:30:34 UTC · ↺ Refresh
MX Hostnames
- smtp.google.com
MX Priorities
- smtp.google.com: 1
A / AAAA Records
- 52.85.31.106 ↩ server-52-85-31-106.jfk50.r.cloudfront.net
- 52.85.31.100
- 52.85.31.95
- 52.85.31.86
Mail Server IPs
- 142.251.167.26 ↩ ww-in-f26.1e100.net
- 142.251.16.26 ↩ bl-in-f26.1e100.net
- 142.251.16.27 ↩ bl-in-f27.1e100.net
- 142.251.163.26 ↩ wv-in-f26.1e100.net
- 142.251.163.27 ↩ wv-in-f27.1e100.net
- 2607:f8b0:4004:c1b::1a ↩ wv-in-f26.1e100.net
- 2607:f8b0:4004:c1b::1b ↩ wv-in-f27.1e100.net
- 2607:f8b0:4004:c17::1b ↩ bl-in-f27.1e100.net
- 2607:f8b0:4004:c17::1a ↩ bl-in-f26.1e100.net
SOA Record
Raw SOA
ns-578.awsdns-08.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-578.awsdns-08.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-578.awsdns-08.net
ns-1409.awsdns-48.org
ns-1672.awsdns-17.co.uk
ns-272.awsdns-34.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.rdstation.com.br include:sendgrid.net ~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]; rf=afrf; pct=100
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
google._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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
3 records- SPFv=spf1 include:_spf.rdstation.com.br include:sendgrid.net ~all
- google-site-verification=Xfw6ofhSlVMhE96aEL1f7hFcQe8ygNAaPMF5ETumrCQ
- SPFv=spf1 include:_spf.google.com ~all
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