Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
linkresearchtools.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 02:04:14 UTC · ↺ Refresh
MX Hostnames
- mail.linkresearchtools.de
MX Priorities
- mail.linkresearchtools.de: 10
A / AAAA Records
- 136.243.116.37 ↩ static.37.116.243.136.clients.your-server.de
Mail Server IPs
- 142.132.137.241 ↩ lrt-prod-mail3.lrt.tools
SOA Record
Raw SOA
ns1.softlayer.com root.linkresearchtools.de 2023021303 7200 600 1728000 900
Primary NS (mname)
ns1.softlayer.com
Admin Email (rname)
root@linkresearchtools.de
Serial
2023021303
Refresh
7200s
Retry
600s
Expire
1728000s
Minimum TTL
900s
Nameservers (NS)
ns1.softlayer.com
ns2.softlayer.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx ip4:167.89.22.41 include:spf.protection.outlook.com include:spf.linkresearchtools.com include:spf.mandrillapp.com include:sendgrid.net ~all
📊 DNS lookups: 6/10
~ 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
2 records- SPFv=spf1 a mx ip4:167.89.22.41 include:spf.protection.outlook.com include:spf.linkresearchtools.com include:spf.mandrillapp.com include:sendgrid.net ~all
- google-site-verification=BA4WqHqiqi__sAvBbQ0U1Rp-NQ7iUK4iirs3KBkuI1M
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