Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gigahertz.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 07:38:26 UTC · ↺ Refresh
MX Hostnames
- gigahertz-de.h-v1.mx.microsoft
MX Priorities
- gigahertz-de.h-v1.mx.microsoft: 0
A / AAAA Records
- 192.124.249.76 ↩ cloudproxy10076.sucuri.net
- 2a02:fe80:1010::26:4 (no PTR)
Mail Server IPs
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.nodesecure.com frank\.eckenfels.gigahertz.de 2026015534 43200 7200 1209600 600
Primary NS (mname)
ns1.nodesecure.com
Admin Email (rname)
frank\@eckenfels.gigahertz.de
Serial
2026015534
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
600s
Nameservers (NS)
ns1.nodesecure.com
ns2.nodesecure.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:mailgw.gigahertz.de include:spf-de.emailsignatures365.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; ri=86400; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
6 records- MS=ms81161034
- atlassian-domain-verification=fBRNoF2TnMVKG0tSUepWumjF3WUxPu6zg2RUFxUKTtM4AkQMPE80xitaMcq4Qh8o
- atlassian-sending-domain-verification=3118f1aa-ad64-4941-a67d-8a715a390fc4
- jamf-site-verification=hOjLfYBk_5cxHRpD7WIpDg
- SPFv=spf1 include:spf.protection.outlook.com include:mailgw.gigahertz.de include:spf-de.emailsignatures365.com -all
- asv=83f42f550cc328b6eafb6a3b1032e194
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