Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sistig.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 19:14:12 UTC · ↺ Refresh
MX Hostnames
- mx21.system-hoster.com
- mx20.system-hoster.com
MX Priorities
- mx20.system-hoster.com: 10
- mx21.system-hoster.com: 10
A / AAAA Records
- 213.190.30.203 (no PTR)
- 2a0a:51c0::1d9:0:0:0:203 (no PTR)
Mail Server IPs
- 193.143.122.115 ↩ mx20.system-hoster.com
- 193.143.122.117 ↩ mx21.system-hoster.com
SOA Record
Raw SOA
ns1.domaindiscount24.net tech.key-systems.net 2026014239 10800 3600 604800 28800
Primary NS (mname)
ns1.domaindiscount24.net
Admin Email (rname)
tech@key-systems.net
Serial
2026014239
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
28800s
Nameservers (NS)
ns1.domaindiscount24.net
ns3.domaindiscount24.net
ns2.domaindiscount24.net
SPF Record
✓ Strict (-all)
v=spf1 a mx include:spf.system-hoster.com include:spf.brevo.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
2 records- brevo-code:951125452f3ea8a348da474c32de0ceb
- SPFv=spf1 a mx include:spf.system-hoster.com include:spf.brevo.com -all
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