Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
granitbau.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 08:24:14 UTC · ↺ Refresh
MX Hostnames
- mail.granitbau.de
MX Priorities
- mail.granitbau.de: 10
A / AAAA Records
- 94.130.55.100 ↩ webhost1996.kundenbox.com
Mail Server IPs
- 148.251.55.181 ↩ server.kundenbox.com
SOA Record
Raw SOA
hydrogen.ns.hetzner.com dns.hetzner.com 2024091901 86400 10800 3600000 3600
Primary NS (mname)
hydrogen.ns.hetzner.com
Admin Email (rname)
dns@hetzner.com
Serial
2024091901
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
3600s
Nameservers (NS)
helium.ns.hetzner.de
oxygen.ns.hetzner.com
hydrogen.ns.hetzner.com
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:148.251.55.181 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 a mx ip4:148.251.55.181 -all
- MS=4D13EDC129DC44CB48CA24E9272EAFFB1C49B51D
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 granitbau.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits