Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sirius-ceramics.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 08:58:34 UTC · ↺ Refresh
MX Hostnames
- mx00.ionos.de
- mx01.ionos.de
MX Priorities
- mx01.ionos.de: 10
- mx00.ionos.de: 10
A / AAAA Records
- 162.159.134.42 (no PTR)
Mail Server IPs
- 217.72.192.67 ↩ mx01.kundenserver.de
- 212.227.15.41 ↩ mx00.kundenserver.de
SOA Record
Raw SOA
ns1037.ui-dns.com hostmaster.1and1.com 2018030123 28800 7200 604800 300
Primary NS (mname)
ns1037.ui-dns.com
Admin Email (rname)
hostmaster@1and1.com
Serial
2018030123
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1031.ui-dns.org
ns1112.ui-dns.de
ns1084.ui-dns.biz
ns1037.ui-dns.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf-eu.ionos.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected]
✓ Reject — strongest protection
📋 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
3 records- ca3-fc4b9ea3cddf41799951d6e203369cd8
- SPFv=spf1 include:_spf-eu.ionos.com ~all
- google-site-verification=tNBrjT3r6MR2TSC65tpyEeFZfNk8WHVahh8HQ2R2FG0
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