Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dr-helmbrecht.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 03:23:30 UTC · ↺ Refresh
MX Hostnames
- mx0.sol-computer.com
MX Priorities
- mx0.sol-computer.com: 10
A / AAAA Records
- 136.243.96.130 ↩ web03.sol-computer.com
Mail Server IPs
- 136.243.96.133 ↩ mx0.sol-computer.com
SOA Record
Raw SOA
ns1.first-ns.de dns.hetzner.com 2026021700 86400 10800 3600000 60
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
dns@hetzner.com
Serial
2026021700
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
60s
Nameservers (NS)
robotns3.second-ns.com
ns1.first-ns.de
robotns2.second-ns.de
SPF Record
✓ Strict (-all)
v=spf1 mx a:solroot.sol-computer.com a:mx0.sol-computer.com a:web03.sol-computer.com a:136.243.96.130 -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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- google-site-verification=sAd_eCLpy9I4l90Gw8bT0AKvZxtszONzuNYwVxO_L-E
- SPFv=spf1 mx a:solroot.sol-computer.com a:mx0.sol-computer.com a:web03.sol-computer.com a:136.243.96.130 -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
See demo & docs
Deep verification
Full email verification for dr-helmbrecht.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits