Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tech-doc.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 23:10:06 UTC · ↺ Refresh
MX Hostnames
- tech-doc.de
MX Priorities
- tech-doc.de: 0
A / AAAA Records
- 158.106.129.254 ↩ host.polilingua.com
Mail Server IPs
- 158.106.129.254 ↩ host.polilingua.com
SOA Record
Raw SOA
ns1.polilingua.com roman.polilingua.com 2026033107 3600 1800 1209600 86400
Primary NS (mname)
ns1.polilingua.com
Admin Email (rname)
roman@polilingua.com
Serial
2026033107
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2.polilingua.com
ns1.polilingua.com
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:158.106.129.254 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 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
1 record- SPFv=spf1 +a +mx +ip4:158.106.129.254 ~all
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