Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cyber-insight.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 02:05:29 UTC · ↺ Refresh
MX Hostnames
- cyberinsight-de01c.mail.protection.outlook.com
MX Priorities
- cyberinsight-de01c.mail.protection.outlook.com: 0
A / AAAA Records
- 185.175.196.112 (no PTR)
- 2a00:1c98:60:1151::78cc:a953 (no PTR)
Mail Server IPs
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns2.domaindiscount24.net tech.key-systems.net 2026031500 10800 3600 604800 28800
Primary NS (mname)
ns2.domaindiscount24.net
Admin Email (rname)
tech@key-systems.net
Serial
2026031500
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
28800s
Nameservers (NS)
ns2.domaindiscount24.net
ns1.domaindiscount24.net
ns3.domaindiscount24.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:80.64.190.237 include:_spf.mailersend.net include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
11 records- @MS=ms58708195
- google-site-verification=jGBduQrIPO1fYyZqcWnBt9jO03TlOQDIkBziQpdbrt0
- SPFv=spf1 ip4:80.64.190.237 include:_spf.mailersend.net include:spf.protection.outlook.com -all
- sophos-domain-verification=084d3cd1fe164c56df1897d96ae88ed9d952755ee30009b9b3fafabcc26070c1
- google-site-verification=8XMgawu1JYf2OfxoIQw7g1jG9XDnqIm7s41zZJUbKQY
- firebase=fbapp-8ac41
- firebase=cyber-insight-dev
- atlassian-domain-verification=VH2LvaOfq9VCe3wyMi4b6XPQtoj1cKTmxCwrJxlogHOw1xwBva7f45wFxWxNioEj
- apple-domain-verification=rWgb3obqtCk48Z7c
- google-site-verification=wAAbbni2kxIKLc06ZMVcfghHo-oc4gLZqG
- google-site-verification=PbRTUMnUtTXGfc-NzNMUMqxZnXu2n5d5xJK-vXesXpQ
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 cyber-insight.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits