Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
leistungszentrum-simulation-software.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 13:56:20 UTC · ↺ Refresh
MX Hostnames
- mail.joker.com
MX Priorities
- mail.joker.com: 10
A / AAAA Records
- 192.102.162.236 ↩ 192-102-162-236.vm.c.fraunhofer.de
Mail Server IPs
- 194.245.148.6 ↩ mailfw3.joker-forward.com
- 194.245.148.9 ↩ mailfw4.joker-forward.com
SOA Record
Raw SOA
x.ns.joker.com hostmaster.joker.com 2025063056 14400 3600 1209600 300
Primary NS (mname)
x.ns.joker.com
Admin Email (rname)
hostmaster@joker.com
Serial
2025063056
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
y.ns.joker.com
z.ns.joker.com
x.ns.joker.com
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=_spf.fraunhofer.de
📊 DNS lookups: 1/10
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: reject
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 redirect=_spf.fraunhofer.de
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