Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nucleusapp.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 00:46:03 UTC · ↺ Refresh
MX Hostnames
- ns1br1.certoweb.com.br
MX Priorities
- ns1br1.certoweb.com.br: 0
A / AAAA Records
- 177.70.29.20 ↩ none.underplatform.com
Mail Server IPs
- 186.226.57.49 ↩ certobr1.certoweb.com.br
SOA Record
Raw SOA
lily.ns.cloudflare.com dns.cloudflare.com 2398088765 10000 2400 604800 1800
Primary NS (mname)
lily.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398088765
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
walt.ns.cloudflare.com
lily.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.google.com -all
📊 DNS lookups: 1/10
✓ 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
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:_spf.google.com -all
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