Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
crossfit-kampfgeist.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 16:43:47 UTC · ↺ Refresh
MX Hostnames
- mx01.kundenserver.de
- mx00.kundenserver.de
MX Priorities
- mx01.kundenserver.de: 10
- mx00.kundenserver.de: 10
A / AAAA Records
- 104.21.57.68 (no PTR)
- 172.67.189.99 (no PTR)
- 2606:4700:3031::6815:3944 (no PTR)
- 2606:4700:3031::ac43:bd63 (no PTR)
Mail Server IPs
- 217.72.192.67 ↩ mx01.kundenserver.de
- 212.227.15.41 ↩ mx00.kundenserver.de
SOA Record
Raw SOA
anuj.ns.cloudflare.com dns.cloudflare.com 2399249846 10000 2400 604800 1800
Primary NS (mname)
anuj.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399249846
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
anuj.ns.cloudflare.com
lady.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.perfora.net include:spf.mandrillapp.com include:amazonses.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
s1._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- SPFv=spf1 include:_spf.perfora.net include:spf.mandrillapp.com include:amazonses.com -all
- MS=ms19676025
- amazon-business-verification=9b3c63fbc98a94ed34e2c73fe55987cc033bdd8bc75ad8e0ce884f531ac89399
- apple-domain-verification=5W6gHB9wRROIfFUa9VHLgpKiYjKaCSBhbigGIeDoHf0
- google-site-verification=piKqwPb6jJBvHpmHYj7qswy3z9sVd4qn9tw0J109s8s
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
See demo & docs
Deep verification
Full email verification for crossfit-kampfgeist.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits