Domain Overview
DNS: ✓ 11d ago
Checker: ✓ 11d ago
whiterabbit-cgs.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-06-26 02:48:18 UTC · ↺ Refresh
MX Hostnames
- w019bf22.kasserver.com
MX Priorities
- w019bf22.kasserver.com: 10
A / AAAA Records
- 104.21.85.161 (no PTR)
- 172.67.207.162 (no PTR)
- 2606:4700:3030::6815:55a1 (no PTR)
- 2606:4700:3031::ac43:cfa2 (no PTR)
Mail Server IPs
- 85.13.141.22 ↩ dd21022.kasserver.com
SOA Record
Raw SOA
harlan.ns.cloudflare.com dns.cloudflare.com 2407471825 10000 2400 604800 1800
Primary NS (mname)
harlan.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2407471825
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
harlan.ns.cloudflare.com
kehlani.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:spf.kasserver.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate 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
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 a mx include:spf.kasserver.com ~all
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for whiterabbit-cgs.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits