Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nielsen-design.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 23:53:44 UTC · ↺ Refresh
MX Hostnames
- nielsendesign-de01i.mail.protection.outlook.com
MX Priorities
- nielsendesign-de01i.mail.protection.outlook.com: 10
A / AAAA Records
- 23.88.26.194 ↩ bt20.burg-gmbh.de
Mail Server IPs
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.fhd.de dom-adm.fhd.de 2026022601 28800 7200 604800 86400
Primary NS (mname)
dns1.fhd.de
Admin Email (rname)
dom-adm@fhd.de
Serial
2026022601
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
dns2.fhd.de
dns1.fhd.de
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:217.239.135.179 include:spf.burg-spf.de include:spf.nl2go.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
s1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- google-site-verification=_NRkvAfMOjIBoBTpTpC1MJOoG4sOPugQsVy2RT2lZDA
- SPFv=spf1 mx ip4:217.239.135.179 include:spf.burg-spf.de include:spf.nl2go.com include:spf.protection.outlook.com -all
- hosted by Franke & Partner GbR
- MS=ms38946134
- google-site-verification=rYDQ4yTpe9kryMcxGfUWHsv-lLV5GAWy9-6DSdy6jBQ
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