Domain Overview
DNS: ✓ 1mo ago
Checker: ✓ 1mo ago
htw-designcarpet.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-07 15:38:22 UTC · ↺ Refresh
MX Hostnames
- mx1.htw-net.de
- mx0.htw-net.de
MX Priorities
- mx0.htw-net.de: 10
- mx1.htw-net.de: 20
A / AAAA Records
- 87.106.118.203 ↩ is-2.htw-net.de
- 195.201.1.31 ↩ is-1.htw-net.de
- 138.201.158.194 ↩ is-0.htw-net.de
Mail Server IPs
- 45.15.121.34 (no PTR)
- 195.50.145.218 (no PTR)
SOA Record
Raw SOA
is-0.htw-net.de administration.halbmond.de 2025101701 10800 3600 604800 10800
Primary NS (mname)
is-0.htw-net.de
Admin Email (rname)
administration@halbmond.de
Serial
2025101701
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
is-2.htw-net.de
is-0.htw-net.de
is-1.htw-net.de
SPF Record
✓ Strict (-all)
v=spf1 a:server0.htw-net.de a:server1.htw-net.de a:is-0.htw-net.de a:is-1.htw-net.de a:is-2.htw-net.de -all
📊 DNS lookups: 5/10
✓ 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- SPFv=spf1 a:server0.htw-net.de a:server1.htw-net.de a:is-0.htw-net.de a:is-1.htw-net.de a:is-2.htw-net.de -all
- htuf87ad3sjrdbf1l06kalirro
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