Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hochtief.nl
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 11:43:58 UTC · ↺ Refresh
MX Hostnames
- hochtief-nl.mail.protection.outlook.com
MX Priorities
- hochtief-nl.mail.protection.outlook.com: 0
A / AAAA Records
- 37.97.223.231 ↩ 37-97-223-231.colo.transip.net
Mail Server IPs
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca09::f ↩ mail-am7pr05cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
SOA Record
Raw SOA
x.ns.joker.com hostmaster.joker.com 2026022530 14400 3600 604800 300
Primary NS (mname)
x.ns.joker.com
Admin Email (rname)
hostmaster@joker.com
Serial
2026022530
Refresh
14400s
Retry
3600s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
y.ns.joker.com
x.ns.joker.com
z.ns.joker.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:35.80.141.6 ip4:44.229.121.55 ip4:18.168.51.200 ip4:18.168.140.58 ip4:3.123.206.219 ip4:3.68.129.51 ip4:3.105.238.148 ip4:3.106.50.25 ip4:18.180.127.81 ip4:54.64.30.13 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
2 records- knowbe4-site-verification=31e048ee3866263191cb829f1ee3a099
- SPFv=spf1 ip4:35.80.141.6 ip4:44.229.121.55 ip4:18.168.51.200 ip4:18.168.140.58 ip4:3.123.206.219 ip4:3.68.129.51 ip4:3.105.238.148 ip4:3.106.50.25 ip4:18.180.127.81 ip4:54.64.30.13 include:spf.protection.outlook.com -all
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