Domain Overview
DNS: โ 2mo ago
Checker: โ 2mo ago
kon-centus.de
Yes
โ Yes
Unknown
No
No
โ Yes
No
No
Checked via [email protected]
ยท 2026-03-21 09:10:49 UTC ยท โบ Refresh
MX Hostnames
- mail02.neu-itec.de
MX Priorities
- mail02.neu-itec.de: 10
A / AAAA Records
- 81.88.34.69 โฉ host276.alfahosting-server.de
Mail Server IPs
- 185.152.106.6 โฉ mail02.neu-itec.de
SOA Record
Raw SOA
cns1.alfahosting.info hostmaster\@alfahosting.de 2026031102 28800 7200 604800 10800
Primary NS (mname)
cns1.alfahosting.info
Admin Email (rname)
hostmaster\@alfahosting@de
Serial
2026031102
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
cns1.alfahosting.info
cns3.alfahosting.info
cns2.alfahosting.info
SPF Record
โ Strict (-all)
v=spf1 mx ip4:185.152.106.0/24 -all
๐ DNS lookups: 1/10
โ Hard fail (-all) โ strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; adkim=r; aspf=r; rua=mailto:[email protected]; ruf=mailto:[email protected];
~ Quarantine โ good protection (failing mail goes to spam)
๐ SPF alignment: Relaxed
ยท DKIM alignment: Relaxed
๐ง Reports โ mailto:[email protected]
DKIM Selectors
โ None detectedNo DKIM records found for common selectors โ 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- SPFv=spf1 mx ip4:185.152.106.0/24 -all
- google-site-verification=YOg3lsFGxK9opPZGoQRTkud2BYIsLtH87BLPxhi9opk
Free ยท No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts โ unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code ยท Works on any site
See demo & docs
Deep verification
Full email verification for kon-centus.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits