Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
shielder.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 04:47:46 UTC · ↺ Refresh
MX Hostnames
- mx.shielder.com.br
MX Priorities
- mx.shielder.com.br: 0
A / AAAA Records
- 104.26.15.96 (no PTR)
- 104.26.14.96 (no PTR)
- 172.67.73.29 (no PTR)
- 2606:4700:20::ac43:491d (no PTR)
- 2606:4700:20::681a:f60 (no PTR)
- 2606:4700:20::681a:e60 (no PTR)
Mail Server IPs
- 209.142.64.213 ↩ mail.shielder.com.br
SOA Record
Raw SOA
chloe.ns.cloudflare.com dns.cloudflare.com 2400618693 10000 2400 604800 1800
Primary NS (mname)
chloe.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400618693
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
chloe.ns.cloudflare.com
derek.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a a:mx.shielder.com.br a:mail.shielder.com.br ip4:209.142.64.213 ip6:fe80::d1ff:fe8e:40d5 ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 5 found
google._domainkey
default._domainkey
dkim._domainkey
s1._domainkey
s2._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 mx a a:mx.shielder.com.br a:mail.shielder.com.br ip4:209.142.64.213 ip6:fe80::d1ff:fe8e:40d5 ~all
- A1695EBC2B8298AA3F3ADB9B6B52FB8A3FBB316B
Full email verification for shielder.com.br
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