Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sistecnologia.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 13:26:10 UTC · ↺ Refresh
MX Hostnames
- mail.sistecnologia.com.br
MX Priorities
- mail.sistecnologia.com.br: 0
A / AAAA Records
- 172.67.69.81 (no PTR)
- 104.26.9.66 (no PTR)
- 104.26.8.66 (no PTR)
- 2606:4700:20::681a:842 (no PTR)
- 2606:4700:20::681a:942 (no PTR)
- 2606:4700:20::ac43:4551 (no PTR)
Mail Server IPs
- 34.204.116.162 ↩ server.sistecnologia.com.br
SOA Record
Raw SOA
derek.ns.cloudflare.com dns.cloudflare.com 2400395973 10000 2400 604800 1800
Primary NS (mname)
derek.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400395973
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
derek.ns.cloudflare.com
emerie.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:34.204.116.162 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 +a +mx +ip4:34.204.116.162 ~all
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