Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
igg-grundbau.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 16:05:52 UTC · ↺ Refresh
MX Hostnames
- mx01.crns.de
MX Priorities
- mx01.crns.de: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 83.246.76.19 (no PTR)
- 83.246.76.18 (no PTR)
- 135.181.247.252 ↩ mx-heimdal-1.net.crns.de
SOA Record
Raw SOA
ns1.register-it.net hostmaster.creanet.de 2026040100 10800 3600 604800 300
Primary NS (mname)
ns1.register-it.net
Admin Email (rname)
hostmaster@creanet.de
Serial
2026040100
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns2.register-it.net
ns1.register-it.net
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.creativenet.de -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- google-site-verification=BwsjdP0lg1VAAI5lNG2dvL1WgrO2UchPkEDVqK0zN_k
- _globalsign-domain-verification=FCRDVL1tZp6MEqQ3x9MgURylYaQOL2mQeHIRjezvSx
- SPFv=spf1 include:_spf.creativenet.de -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 igg-grundbau.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits