Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ndrb.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 13:31:34 UTC · ↺ Refresh
MX Hostnames
- relay.mail.sec-provider.de
MX Priorities
- relay.mail.sec-provider.de: 10
A / AAAA Records
- 34.107.191.187 ↩ 187.191.107.34.bc.googleusercontent.com
Mail Server IPs
- 88.215.200.10 ↩ relay.mail.sec-provider.de
- 2001:14c0:1001:2::10 ↩ relay.mail.sec-provider.de
SOA Record
Raw SOA
ns-cloud-d1.googledomains.com cloud-dns-hostmaster.google.com 2 21600 3600 259200 300
Primary NS (mname)
ns-cloud-d1.googledomains.com
Admin Email (rname)
cloud-dns-hostmaster@google.com
Serial
2
Refresh
21600s
Retry
3600s
Expire
259200s
Minimum TTL
300s
Nameservers (NS)
ns-cloud-d4.googledomains.com
ns-cloud-d1.googledomains.com
ns-cloud-d3.googledomains.com
ns-cloud-d2.googledomains.com
SPF Record
✓ Strict (-all)
v=spf1 a:mail.radiobremen.de include:spf.sec-provider.de include:spf.nl2go.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict 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
3 records- swisssign-check=3BJYmP5DVf1E0bn3iG7xEXxzHwN5rBd0VBsU4QJ0sa
- MS=ms69362699
- SPFv=spf1 a:mail.radiobremen.de include:spf.sec-provider.de include:spf.nl2go.com -all
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