Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rb-webentwicklung.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 07:02:25 UTC · ↺ Refresh
MX Hostnames
- mx3.agenturserver.de
- mx2.agenturserver.de
- mx1.agenturserver.de
- mx4.agenturserver.de
MX Priorities
- mx1.agenturserver.de: 10
- mx2.agenturserver.de: 10
- mx3.agenturserver.de: 20
- mx4.agenturserver.de: 50
A / AAAA Records
- 185.243.135.200 ↩ r29965.agenturserver.it
Mail Server IPs
- 185.15.192.56 ↩ mx1.agenturserver.de
- 185.15.192.57 ↩ mx2.agenturserver.de
- 185.15.192.58 ↩ mx3.agenturserver.de
- 185.15.192.59 ↩ mx4.agenturserver.de
SOA Record
Raw SOA
ns1.first-ns.de dns.hetzner.com 2025090200 3600 1800 1209600 86400
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
dns@hetzner.com
Serial
2025090200
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
robotns2.second-ns.de
ns1.first-ns.de
robotns3.second-ns.com
SPF Record
✓ Strict (-all)
v=spf1 include:agenturserver.de -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
1 record- SPFv=spf1 include:agenturserver.de -all
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