Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hygiene-netzwerk.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 07:16:57 UTC · ↺ Refresh
MX Hostnames
- mail.gbc.net
MX Priorities
- mail.gbc.net: 10
A / AAAA Records
- 212.97.109.240 ↩ rev-97-109-240.gbc.de
Mail Server IPs
- 212.97.96.201 ↩ ns.gbc.net
SOA Record
Raw SOA
ns1.domaindiscount24.net tech.key-systems.net 2025110403 10800 3600 604800 28800
Primary NS (mname)
ns1.domaindiscount24.net
Admin Email (rname)
tech@key-systems.net
Serial
2025110403
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
28800s
Nameservers (NS)
ns1.domaindiscount24.net
ns3.domaindiscount24.net
ns2.domaindiscount24.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:212.97.96.0/19 include:spf.crsend.com include:spf.sendinblue.com include:spf.smtp.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict 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
✓ 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
3 records- google-site-verification=k0r-MMHTjl02Fe_x7p9J5xTZQN1uhwtGwxCljwL0TW0
- SPFv=spf1 ip4:212.97.96.0/19 include:spf.crsend.com include:spf.sendinblue.com include:spf.smtp.net -all
- brevo-code:2257c801d0f1da5cbb26f594bacac478
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 hygiene-netzwerk.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits